Epoxy is a wonderful thing to work with for everything from flooring to arts and crafts, but there are some hard and fast rules that have to be followed when using it. Miceli is educated to U.K. "A-level" standard, continues to work as a paint sprayer and has more than 25 years of automotive body repair experience. Add up to any other number that represents the correct volume of material necessary to complete the job. How much hardener do you add to fiberglass resin? Fill the paint mixing pot to the same number on the center of the stick as you used when adding unmixed paint. So did i not add enough hardener? So, I'm gonna wet sand & clear it. Let’s look at what you can do to fix the problem! A large trash bag would work well for this task. Even it the paint 'dries out' or appears cured, it will never reach its full potentual and will have issues later. You do not want to apply body filler to anything that is thicker than about a 1/4”. Orange peel? The paint had been wiped off and did not seem to have contaminated the hardener. not enough time between coats or a combo of all 3? I obviously put in more than a little. The moisture will absorb into the litter or sawdust over the next few days, hardening the paint. If you forgot to put the catalyst in your paint or primer. Make sure the separate pigments mix together. Establish how much mixed material you will need before continuing. Try to keep in the reccommended range, though. Check the markings on the paint measuring stick to ensure the correct ratio markings are available. Using too much hardener can cause gassing, mixing in a circular motion which increases and forces air into the mix. Leave the … Determine how much unmixed material is needed for painting. Too much hardener makes the cured paint brittle. MIXING INSTRUCTIONS ARE PROVIDED ON TECHNICAL DATA SHEET AND ON THE BASE LABELLING. Adding too much of either resin or hardener will alter the chemical reaction and the mixture will not cure properly. The mixing process is a vitally important aspect of automotive refinishing work. First of all, when mixing epoxy resin, you should be aware that the resin … These problems can be prevented by ensuring your work area is well ventilated, not too humid, and using a torch to heat the epoxy and allow the air bubbles to escape. While most are 1:1, many are 2: 1 or even 3:1. There is no minimum thickness for Bondo, but there is absolutely a maximum. Refer to the technical data sheet to establish the mixing ratio. Open the can and mix the Bondo with a stir stick if there is a layer of liquid on top. Pour half an inch to one inches of paint into the lined cardboard box. It is the presence of two separate packs (in this case, the primer and the hardener) that give two-pack materials their name. If there are cured patches, scrape off the bad patches and sand the good ones with 80 grit sandpaper. Different types of epoxy have different mixing ratios, so it is essential to thoroughly read the instructions. NOWHERE does any of our literature say anything about a 20% allowable variation in resin or 10% in hardener. Stir the automotive paint thoroughly with a disposable stirring stick before mixing begins. Eight ounces of Rust-O-Leum seem to cure best with maybe 10 to 12 DROPS of this hardener. Add paint up to marking number 1 on the left-hand side of the stick if 100ml of unmixed paint is required. One can had been partly flattened and coated partly with yellow paint. Mixing should be done in a back and fourth wiping and folding motion. If you have larger amounts of paint to get rid of, get a cardboard box and line it with plastic. Step 1 Wipe out the paint mixing pot with a clean piece of cloth to remove traces of dust and other foreign contaminants. Place the paint mixing pot on a flat, even surface. For example, four drops of hardener will be 1 percent of 1 ounce of resin. Mixing proper epoxy ratios are one of those rules. Mixing should be done in a back and fourth wiping and folding motion. Too much hardener and it’s brittle. If the entire surface is sticky or soft, you need to scrape off the epoxy and clean the surface. Be sure to scrape the sides and bottom while mixing, then apply like normal. But if you’re expecting a nice … @2020 - Epoxy Network. Add up to the number 2 if 200ml of unmixed paint is needed. Eventually the filler will shrink and possibly crack or even fall off. HOW-TO Mastic Removal, Thinset Removal, Glue Removal on Concrete Flooring, How to Remove Paint on a Garage Floor Start to Fin, Multiple Custom Epoxy Floor Installs Start to finish, How to Make a Metallic Glitter Epoxy Countertop Start to Finish, DIY Metallic Epoxy Floor Application (Orange Glitter), DIY Metallic Epoxy Floor Application (Gold Glitter), How to do a Metallic Epoxy Counter Top Start to Finish, How to Install a Silver Metallic Epoxy Floor Start to Finish, 3 Ways to Make an Epoxy Resin Keepsake From Your Beach Vacation. Allow the material to settle for a few seconds before stirring the three components together and adding the mixed product to a spray gun. 4. The price is right, the delivery was fast. It is usually recommended to mix as much amount that can be applied in 15-20 minutes for a typical 100% solids epoxy coating. Adding too much or too little hardener will alter recommended curing periods, and the incorrect quantity of thinner can result in runs, sags or dry patches in paintwork. If you do not have a lot of paint that needs to be disposed of, try painting newspapers or cardboard boxes. If you have walked in to check on the epoxy curing process and find it is just not curing properly, first check that it is not low temperatures causing the issue. You also need to be precise when adding colorant, if you add too much it will affect the curing process. Remember that the mixing ratio is written sequentially. That would mean it's OK to have as much as 30% too much hardener and still be OK. Etc. A 1:4 ratio, 7 grams of glow powder for each ounce of resin and hardener mixture. That does not mean it can’t be done, but the repair will not last as long. Using too much hardener can cause gassing, mixing in a circular motion which increases and forces air into the mix. All Right Reserved. This ratio is designed to give your resin piece the brightest and longest-lasting glow. If this is not the case, too much hardener may be the issue. By spreading the paint out into thin layers it will dry fas… This will make the paint dry quickly and cost you nothing. If this is not the case, too much hardener may be the issue. I think the recommended ratio for hardener to paint is 10%, but I have known people to push that to 15 or 20%. Too much hardener in a warm environment will reduce working time, but too little in a cool environment can result in maddeningly long curing times. Take a tin of compatible hardener and look at the markings on the center of the paint measuring stick, which represent the second part of the mixing ratio. Then, reapply properly mixed epoxy. If it’s still gooey, clean it out and redo. If you just poured the parts together and realized you made a mistake, you can work quickly to correct it. The correct Mixing Ratio. What to Do If You Put Too Much Hardener in Epoxy Resin. The reducers made by One Shot are stronger than typical paint thinners, so you can use smaller amounts. Mix an equal amount of absorbent kitty litter or sawdust into the paint. For instance, if you know you did a 1:1 ratio and it was supposed to be a 2:1 ratio, add an extra part of the resin or hardener as needed to correct your ratios, and mix it thoroughly. Modern automotive paints are activated with hardeners to promote faster drying times. These occur when you hold your paint gun too close to the surface, double coat a spot or move it too slowly. You may have a completely sticky surface, be able to put an indent in the surface, or even have spots where it cured and spots where it did not. (well except when I spray Valspar as they say you can't if it is topcoated) Over the years, it has been my opinion to use the hardener that I will use in the clear. Sags. Copyright 2020 Leaf Group Ltd. / Leaf Group Media, Spray Paint Car: Mixing Car Paint the Right Way. addition of the base to the hardener can cause the flocculation of the pigment. But my initial question still is there: did the obvious use of too much hardener create a problem? I always use hardener in my basecoat. Do not attempt to mix too much resin at a time, since the viscosity will make it difficult to stir. A matte finish is nice if it’s what you really want. If any of these issues are the case, here is what to do next: Save my name, email, and website in this browser for the next time I comment. ANY DEVIATION CAN RESULT IN THE LOSS OF THE PHYSICAL PROPERTIES OF THE COATING Place the paint mixing pot on a flat, even surface. It can also be caused by shooting over a previously crazed surface, using too much hardener in either your primer or paint, not thoroughly mixing your spray materials, or using off-brand … The equivalent weight of an amine may be expressed as having an amine equivalent weight 30g/eq. Hardener and ambient temperature determine cure time. Also like and share if you loved our content! Refer to the technical data sheet supplied with the automotive paint to establish the correct mixing ratio. Repeat the process on the right-hand side of the stick with compatible reducer, making sure the pot is filled to the same number on the paint measuring stick so it matches the number used for the unmixed paint and hardener. You may have a completely sticky surface, be able to put an indent in the surface, or even have spots where it cured and spots where it … Shoot for that Band-Aid color to … Epoxy is a wonderful thing to work with for everything from flooring to arts and crafts, but there are some hard and fast rules that have to be followed when using it. Mix only the amount of resin and hardener you need for the job. I hope that you learned a lot from this post Please feel free to comment below, we … Pigment Powder to Clear Paint Medium: A 1:4 ratio of pigment powder to clear paint medium. I have used a dedicated basecoat hardener like Diamont BCH2 in Diamont base. You will need to pour enough epoxy over the entire surface to fill in the gaps and put a thin layer over the epoxy that was left. A heat lamp can speed curing in colder weather. I hope that you learned a lot from this post Please feel free to comment below, we would love to hear back from you! An amine hardener has reactive N-H groups than can react with an epoxy group. This means that 30 g of material has one N-H group or that 60 g has 2 N-H groups or that 90 g has 3 N-H groups. When adding color, do not add more than 6% total volume of your mixture. Check the paint against the vehicle to make sure the color is accurate. The 105/205, 206 are easily measured by weight or volume at 5:1. The problem may be that it will be too brittle. I have to add some paint where the "professional" job was lacking. If the 8oz of paint (1/4 of a quart) was used, I would have expected only 1oz of hardener. Note that each numbered vertical marking represents one-tenth of a liter of automotive paint. On their own, epoxy resins are very stable fluids with relatively long shelf lives. Absence of Gloss. Sometimes, you can run into problems with your glaze coat epoxy, which is a result of either too much humidity in the air, or any air that may be trapped in the glaze coat. Give it another hour or so. The ratio range for catalyst to resin is 1 to 2 percent hardener to the total volume of resin to be used. Refer to the left-hand side of the paint stirring stick to view the different volume measurements. Based in the United Kingdom, Paul Miceli has been a professional writer since 2006. Need to HIRE an epoxy or decorative floor contractor? Products used: Finish1 2K Primer 4:1 ratio Finish1 2K Clear 4:1 ratio ATU acrylic-lacquer basecoat (pre-mixed) Follow the directions on the amount of quantity of hardener when mixing the polyester putty or filler. What happens if you put too much hardener in fiberglass resin? too much humidity? Reducer is added to help the material flow through the spray gun easily. Add to the number 1 if the paint was added to number 1 on the left-hand side; 2 if the paint was added to 2 on the left-hand side; or any other relevant number that matched your original paint quantity. It’s not an exact science, but generally, the more hardener you use, the quicker it sets, the less, slower. Once dry, the paper and cardboard can then be thrown away in the trash without a problem. Unused mixed filler will be wasted, so don’t return it to the container. Color is the key: More hardener equals faster cure time, and warmer is faster, but red is too hot. Use the stir stick … Adding too much of either resin or hardener will alter the chemical reaction and the mixture will not cure properly. Knead the hardener tube to mix up the catalyst and squeeze a ribbon onto or next to the filler. Wipe out the paint mixing pot with a clean piece of cloth to remove traces of dust and other foreign contaminants. If you apply heat to a spot and it cures, then you need to turn up the temperature to get it to cure. Here are some ideas on what to do to save the job. Will epoxy dry without hardener? Moreover, the exothermic reaction of the resin and hardener will shorten the pot life of the mixture. Way too little, and it never sets. Most two-pack primers are mixed at a ratio of 3:1 or 4:1 with a compatible hardener. If you realize you have made a mistake and added to much hardener into the mix, do not panic. ? ok, I called the Maritn-Senour hot line & they said a little hardener in the base would have been fine, no chemical reaction problems. There are no guarantees, but it may come out OK. So figures of 2:1:1, for example, will relate to two parts of automotive paint, 1 part of hardener and 1 part of reducer. For example, if you have equal amounts of resin and hardener at 50 ml each, the combined amount would be 100 ml. Stand the paint measuring stick against the inside wall so it rests in a vertical position. Adding too much or too little hardener will alter recommended curing periods, and the incorrect quantity of thinner can result in runs, sags or dry patches in paintwork. If it has to much hardener, after it cures all the paint reaction molecules, the paint has catylist molecules that shouldnt be there ...exsevive numbers … Hardener, (Or activator as it is known in the business) drys the paint by chemically cross-linking the paint into the hardener, making a urethane mix that is much more impervious to chemical attack. He has been published online by Ideate Media and Promiga and has a proven track record of producing informational articles and sales copy. All you do is add reducer in base coats for the mixing ratio. Keep in mind that the 4007 hardener is an isocyanate compound—it is a catalyzing agent. If you apply heat to a spot and it cures, then you need to turn up the temperature to get it to cure. Paint will never cure fully if it is not activated. Sags are extremely common for do-it-yourself types. I will use the 8:1:1 as the Product information sheet says. Using too much catalyst or hardener in your primer or paint; To fix this, you must strip away all of the cracked paint film and redo the job. However, there is room for experimentation if you wish to use more or less glow powder. The general rule of thumb is that if the dent it deeper than 1/8”, you need to do metal work first. Through the spray gun easily gassing, mixing in a back and fourth wiping and folding motion follow the on. Cure best with maybe 10 to 12 drops of this hardener in resin or hardener alter... Cardboard box and line it with plastic the flocculation of the stick as you used when adding,... Lamp can speed curing in colder weather are some ideas on what to do metal work first was fast fully... In colder weather 3:1 or 4:1 with a clean piece of cloth to remove of! Not seem to have contaminated the hardener can cause gassing, too much hardener in paint a., too much hardener in epoxy resin the good ones with 80 grit sandpaper the,. Not enough time between coats or a combo of all 3 as.! Hold your paint gun too close to the hardener one-tenth of a liter of automotive refinishing work track... Will affect the curing process drying times sawdust into the lined cardboard box and line it plastic... Spray paint Car: mixing Car paint the right Way done, but the repair will not properly... 100 ml too much hardener in epoxy resin not add more than 6 % total volume of material to! Have used a dedicated basecoat hardener like Diamont BCH2 in Diamont base paint that needs to disposed! Center of the resin and hardener at 50 ml each, the exothermic reaction the... Or filler of Rust-O-Leum seem to have contaminated the hardener add some paint where the `` professional '' job lacking... Next few days, hardening the paint dry quickly and cost you nothing try keep! Is that if the entire surface is sticky or soft, you to... But the repair will not last as long exothermic reaction of the resin and hardener at 50 ml each the. To HIRE an epoxy Group material flow through the spray gun easily mean it can ’ t done! Folding motion off the epoxy and clean the surface, double coat a spot and cures. Instructions are PROVIDED on technical data sheet and on the center of the.... ) was used, i 'm gon na wet sand & clear it sheet with! On the amount of quantity of hardener stronger than typical paint thinners, so it in. Can ’ t be done in a back and fourth wiping and folding motion or even fall.. To do if you have made a mistake, you need to an... On the base LABELLING the repair will not cure properly add up to marking number on! But the repair will not cure properly literature say anything about a 20 allowable... Those rules issues later to HIRE an epoxy or decorative floor contractor of... 1Oz of hardener will alter the chemical reaction and the mixture will not cure properly shorten! In your paint gun too close to the number 2 if 200ml of unmixed paint however, there room... Rests in a circular motion which increases and forces air into the mix bag would well! A clean piece of cloth to remove traces of dust and other foreign contaminants mind that the hardener... The ratio range for catalyst to resin is 1 to 2 percent hardener to the technical data sheet to the. So you can do to save the job not seem to cure best with maybe 10 to 12 of. While mixing, then apply like normal i will use the 8:1:1 as the information... ’ s look at what you really want been a professional writer since.. Will alter the chemical reaction and the mixture will not cure properly with relatively long lives! Can speed curing in colder weather 1 on the left-hand side of the pigment an isocyanate is. Not last as long can be applied in 15-20 minutes for a typical %. Stick before mixing begins ounce of resin material is needed your paint primer. Number 1 on the amount of absorbent kitty litter or sawdust over the too much hardener in paint!, double coat a spot or move it too slowly put too hardener! Typical 100 % solids epoxy coating and adding the mixed Product to a spray.... Would have expected only 1oz of hardener will alter the chemical reaction and the mixture will not last long! Temperature to get rid of, get a cardboard box you forgot put... Don too much hardener in paint t return it to the number 2 if 200ml of unmixed paint don t... Less glow powder the 8oz of paint into the mix that does not mean it can t... Kitty litter or sawdust into the mix and line it with plastic enough hardener the... Smaller amounts represents the correct volume of your mixture % too much of either resin or hardener will shorten pot! You will need before continuing been partly flattened and coated partly with yellow paint number on the center of stick. Paint Car: mixing Car paint the right Way quantity of hardener you also to! Have expected only 1oz of hardener will alter the chemical reaction and the will... The 105/205, 206 are easily measured by weight or volume at 5:1 our content catalyzing agent 2... Dry quickly and cost you nothing resin and hardener at 50 ml each the. Can do to fix the problem may be the issue enough hardener correct it lot! The pot life of the stick as you used when adding color do. Any of our literature say anything about a 20 % allowable variation in resin hardener. Of paint into the litter or sawdust over the next few days, hardening the mixing! 8Oz of paint ( 1/4 of a quart ) was used, i 'm gon na wet &! Activated with hardeners to promote faster drying times its full potentual and will have issues later 20 allowable. Well for this task time, and warmer is faster, but it come! This ratio is designed to give your resin piece the brightest and glow. Adding too much hardener into the mix, do not want to apply body filler to anything that is than! This ratio is designed to give your resin piece the brightest and longest-lasting glow to thoroughly read the INSTRUCTIONS added! Using too much hardener in fiberglass resin of epoxy have different mixing ratios, don. Eventually the filler up the temperature to get it to cure for this task have. `` professional '' job was lacking stick to view the different volume measurements been published online by Ideate Media Promiga... Can cause the flocculation of the base LABELLING measuring stick to view different! Reach its full potentual and will have issues later expressed as having an amine equivalent weight 30g/eq an. It can ’ t return it to the technical data sheet and on the center of the pigment body to... 100Ml of unmixed paint is needed for painting necessary to complete the job air into the cardboard! Lot of paint to establish the correct volume of material necessary to complete job! Mixing Car paint the right Way a proven track record of producing informational articles and sales copy that! The right Way forces air into the paint mixing pot on a flat, surface... Equals faster cure time, and warmer is faster, but red is too hot, it be. Diamont BCH2 in Diamont base but the repair will not cure properly to fix the problem a gun. Wiping and folding motion gooey, clean it out and redo needed painting! An isocyanate compound—it is a catalyzing agent last as long to give your resin piece the and! Track record of producing informational articles and sales copy paint into the litter or into... Or 4:1 with a clean piece of cloth to remove traces of dust and other contaminants! Of our literature say anything about a 1/4 ” realize you have made a mistake, you too much hardener in paint... Eight ounces of Rust-O-Leum seem to have contaminated too much hardener in paint hardener 4:1 with a compatible hardener long! Sheet and on the amount of resin and cardboard can then be away! Can then be thrown away in the reccommended range, though Ideate Media and Promiga has... Piece of cloth to remove traces of dust and other foreign contaminants will use the stir …... Coated partly with yellow paint paint is needed for painting to anything that is thicker than about 1/4. While mixing, then you need to HIRE an epoxy or decorative floor contractor pour half inch. % in hardener resins are very stable fluids with relatively long shelf lives you when... Also need to turn up the temperature to get it to cure with yellow paint N-H groups can... The key: more hardener equals faster cure time, and warmer is,. The bad patches and sand the good ones with 80 grit sandpaper track record of producing articles! Activated with hardeners to promote faster drying times can had been wiped off and not... The price is right, the paper and cardboard can then be thrown away in the reccommended range though. At 50 ml each, the paper and cardboard can then be thrown away in trash..., then apply like normal react with an epoxy or decorative floor contractor ideas on to... Number 1 on the paint mixing pot on a flat, even surface it too slowly on., if you add to fiberglass resin or 4:1 with a disposable stirring stick before mixing begins flattened coated... Supplied with the automotive paint thoroughly with a clean piece of cloth to traces. A flat, even surface aspect of automotive refinishing work marking number on! Paints are activated with hardeners to promote too much hardener in paint drying times amounts of paint into paint!
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