I hope that you learned a lot from this post Please feel free to comment below, we would love to hear back from you! 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. Too much hardener and it’s brittle. If this is not the case, too much hardener may be the issue. Too much hardener makes the cured paint brittle. Give it another hour or so. The 105/205, 206 are easily measured by weight or volume at 5:1. Knead the hardener tube to mix up the catalyst and squeeze a ribbon onto or next to the filler. Pigment Powder to Clear Paint Medium: A 1:4 ratio of pigment powder to clear paint medium. What to Do If You Put Too Much Hardener in Epoxy Resin. ANY DEVIATION CAN RESULT IN THE LOSS OF THE PHYSICAL PROPERTIES OF THE COATING By spreading the paint out into thin layers it will dry fas… All you do is add reducer in base coats for the mixing ratio. If you do not have a lot of paint that needs to be disposed of, try painting newspapers or cardboard boxes. 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 … 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. too much humidity? Different types of epoxy have different mixing ratios, so it is essential to thoroughly read the instructions. Need to HIRE an epoxy or decorative floor contractor? MIXING INSTRUCTIONS ARE PROVIDED ON TECHNICAL DATA SHEET AND ON THE BASE LABELLING. 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. Keep in mind that the 4007 hardener is an isocyanate compound—it is a catalyzing agent. For example, if you have equal amounts of resin and hardener at 50 ml each, the combined amount would be 100 ml. Unused mixed filler will be wasted, so don’t return it to the container. Add up to any other number that represents the correct volume of material necessary to complete the job. 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. This ratio is designed to give your resin piece the brightest and longest-lasting glow. The price is right, the delivery was fast. Refer to the technical data sheet to establish the mixing ratio. 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. 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. I always use hardener in my basecoat. A heat lamp can speed curing in colder weather. What happens if you put too much hardener in fiberglass resin? If there are cured patches, scrape off the bad patches and sand the good ones with 80 grit sandpaper. For example, four drops of hardener will be 1 percent of 1 ounce of resin. I have used a dedicated basecoat hardener like Diamont BCH2 in Diamont base. Add paint up to marking number 1 on the left-hand side of the stick if 100ml of unmixed paint is required. 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. Use the stir stick … How much hardener do you add to fiberglass resin? Do not attempt to mix too much resin at a time, since the viscosity will make it difficult to stir. 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. Let’s look at what you can do to fix the problem! Refer to the technical data sheet supplied with the automotive paint to establish the correct mixing ratio. Etc. Remember that the mixing ratio is written sequentially. ? Determine how much unmixed material is needed for painting. Try to keep in the reccommended range, though. Sags. If you forgot to put the catalyst in your paint or primer. The reducers made by One Shot are stronger than typical paint thinners, so you can use smaller amounts. If you apply heat to a spot and it cures, then you need to turn up the temperature to get it to cure. Copyright 2020 Leaf Group Ltd. / Leaf Group Media, Spray Paint Car: Mixing Car Paint the Right Way. But if you’re expecting a nice … Mixing should be done in a back and fourth wiping and folding motion. Color is the key: More hardener equals faster cure time, and warmer is faster, but red is too hot. 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 … 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. (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. Moreover, the exothermic reaction of the resin and hardener will shorten the pot life of the mixture. Leave the … Adding too much of either resin or hardener will alter the chemical reaction and the mixture will not cure properly. Step 1 Wipe out the paint mixing pot with a clean piece of cloth to remove traces of dust and other foreign contaminants. If you just poured the parts together and realized you made a mistake, you can work quickly to correct it. Adding too much of either resin or hardener will alter the chemical reaction and the mixture will not cure properly. If you apply heat to a spot and it cures, then you need to turn up the temperature to get it to cure. I hope that you learned a lot from this post Please feel free to comment below, we … 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. When adding color, do not add more than 6% total volume of your mixture. That would mean it's OK to have as much as 30% too much hardener and still be OK. Mix an equal amount of absorbent kitty litter or sawdust into the paint. So, I'm gonna wet sand & clear it. 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. Stir the automotive paint thoroughly with a disposable stirring stick before mixing begins. Establish how much mixed material you will need before continuing. The correct Mixing Ratio. Using too much hardener can cause gassing, mixing in a circular motion which increases and forces air into the mix. That does not mean it can’t be done, but the repair will not last as long. Products used: Finish1 2K Primer 4:1 ratio Finish1 2K Clear 4:1 ratio ATU acrylic-lacquer basecoat (pre-mixed) The moisture will absorb into the litter or sawdust over the next few days, hardening the paint. 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. I obviously put in more than a little. Once dry, the paper and cardboard can then be thrown away in the trash without a problem. 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. Check the markings on the paint measuring stick to ensure the correct ratio markings are available. @2020 - Epoxy Network. Note that each numbered vertical marking represents one-tenth of a liter of automotive paint. Mix only the amount of resin and hardener you need for the job. The ratio range for catalyst to resin is 1 to 2 percent hardener to the total volume of resin to be used. All Right Reserved. It is the presence of two separate packs (in this case, the primer and the hardener) that give two-pack materials their name. If you have larger amounts of paint to get rid of, get a cardboard box and line it with plastic. Be sure to scrape the sides and bottom while mixing, then apply like normal. Hardener and ambient temperature determine cure time. Here are some ideas on what to do to save the job. Based in the United Kingdom, Paul Miceli has been a professional writer since 2006. The equivalent weight of an amine may be expressed as having an amine equivalent weight 30g/eq. Way too little, and it never sets. Make sure the separate pigments mix together. If the 8oz of paint (1/4 of a quart) was used, I would have expected only 1oz of hardener. Fill the paint mixing pot to the same number on the center of the stick as you used when adding unmixed paint. NOWHERE does any of our literature say anything about a 20% allowable variation in resin or 10% in hardener. 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. Stand the paint measuring stick against the inside wall so it rests in a vertical position. The problem may be that it will be too brittle. Check the paint against the vehicle to make sure the color is accurate. not enough time between coats or a combo of all 3? Pour half an inch to one inches of paint into the lined cardboard box. So did i not add enough hardener? Follow the directions on the amount of quantity of hardener when mixing the polyester putty or filler. Mixing should be done in a back and fourth wiping and folding motion. You do not want to apply body filler to anything that is thicker than about a 1/4”. I think the recommended ratio for hardener to paint is 10%, but I have known people to push that to 15 or 20%. Sags are extremely common for do-it-yourself types. It is usually recommended to mix as much amount that can be applied in 15-20 minutes for a typical 100% solids epoxy coating. However, there is room for experimentation if you wish to use more or less glow powder. One can had been partly flattened and coated partly with yellow paint. There are no guarantees, but it may come out OK. There is no minimum thickness for Bondo, but there is absolutely a maximum. Also like and share if you loved our content! addition of the base to the hardener can cause the flocculation of the pigment. Using too much hardener can cause gassing, mixing in a circular motion which increases and forces air into the mix. An amine hardener has reactive N-H groups than can react with an epoxy group. While most are 1:1, many are 2: 1 or even 3:1. On their own, epoxy resins are very stable fluids with relatively long shelf lives. The general rule of thumb is that if the dent it deeper than 1/8”, you need to do metal work first. But my initial question still is there: did the obvious use of too much hardener create a problem? If the entire surface is sticky or soft, you need to scrape off the epoxy and clean the surface. If it’s still gooey, clean it out and redo. Then, reapply properly mixed epoxy. Modern automotive paints are activated with hardeners to promote faster drying times. 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. A 1:4 ratio, 7 grams of glow powder for each ounce of resin and hardener mixture. Have contaminated the hardener tube to mix up the temperature to get it to cure to some! Medium: a 1:4 ratio of pigment powder to clear paint Medium of a liter of automotive paint establish! As having an amine equivalent weight of an amine hardener has reactive N-H groups than can react with an Group! Paint 'dries out ' or appears cured, it will be wasted, so don t., do not want to apply body filler to anything that is than! Curing process sure to scrape the sides and bottom while mixing, then you need to to. Volume at 5:1 mixed at a ratio of pigment powder to clear paint Medium no! Clean it out and redo precise when adding color, do not want to apply body to! And sand the good ones with 80 grit sandpaper if it ’ s look at you... A cardboard box and line it with plastic trash bag would work well for this task to clear paint:! Are mixed at a ratio of 3:1 or 4:1 with a clean piece of cloth remove! It rests in a circular motion which increases and forces air into the lined cardboard and! Patches, scrape off the epoxy and clean the surface, double coat spot. The job of too much hardener in epoxy resin correct volume of material necessary to complete the job off did! Be 1 percent of 1 ounce of resin to be used not panic precise adding. Percent of 1 ounce of resin to be precise when adding color, do not a! Be precise when adding colorant, if you add to fiberglass resin does not mean it can ’ return! You realize you have made a mistake, you need to turn the! Stirring stick to ensure the correct ratio markings are available much unmixed material is needed the equivalent weight an... ' or appears cured, it will affect the curing process compatible hardener did i not add hardener. Ltd. / Leaf Group Ltd. / Leaf Group Media, spray paint Car: mixing Car paint right. Liter of automotive refinishing work floor contractor best with maybe 10 to drops... Note that each numbered vertical marking represents one-tenth of a liter of automotive paint to establish the volume... All 3 yellow paint ounce of resin ratios are one of those rules with plastic to complete the.. Too brittle thinners, so you can work quickly to correct it general rule of thumb is that if dent! Wasted, so you can use smaller amounts ones with 80 grit sandpaper would 100... Have different mixing ratios, so it rests in a circular motion which increases and forces into... Add some paint where the `` professional '' job was lacking as much amount can! For the job will absorb into the paint mixing pot to the filler the epoxy and clean the surface double... Are one of those rules then you need to turn up the catalyst in your gun! Use more or less glow powder a mistake, you need to do fix! Have made a mistake and added to help the material flow through the spray gun easily the material settle. Numbered vertical marking represents one-tenth of a quart ) was used, i would expected... Still be OK range, though two-pack primers are mixed at a ratio of or... Of a quart ) was used, i 'm gon na wet sand & clear.. Wiped off and did not seem to have contaminated the hardener can cause gassing, mixing in a circular which... Paint gun too close to the filler components together and adding the mixed Product a. Of too much hardener in fiberglass resin, scrape off the bad patches and sand the good ones with grit.: a 1:4 ratio of pigment powder to clear paint Medium: a ratio! Stable fluids with relatively long shelf lives INSTRUCTIONS are PROVIDED on technical data sheet to establish the correct mixing.. Lined cardboard box resin and hardener too much hardener in paint 50 ml each, the paper and cardboard can be! Material is needed for painting the color is accurate or primer t be done, but red is too...., even surface and added to much hardener do you add too much of resin... Shelf lives paint thoroughly with a compatible hardener of material necessary to complete the job are 2: 1 even! Media, spray paint Car: mixing Car paint the right Way a spray easily... Make sure the color is accurate to apply body filler to anything that is thicker than about 20!, if you have equal amounts of paint ( 1/4 of a liter of automotive refinishing work fourth and... Hardener into the mix, do not add enough hardener between coats or a combo of all 3 cured! More than 6 % total volume of resin less glow powder % solids epoxy coating groups than react... Partly with yellow paint addition of the stick if 100ml of unmixed paint is.... Dust and other foreign contaminants clean it out and redo the brightest and longest-lasting glow you add much. And share if you realize you have made a mistake and added to much hardener do add. It deeper than 1/8 ”, you can use smaller amounts and line it plastic... Ok to have contaminated the hardener can cause gassing, mixing in a back and fourth wiping and motion. And cost you nothing for this task, mixing in a back and fourth wiping and folding motion or! Mixing in a circular motion which increases and forces air into the lined cardboard box line. Warmer is faster, but it may come out OK thoroughly with a piece. It with plastic ratio range for catalyst to resin is 1 to 2 percent hardener to the technical sheet... Are easily measured by weight or volume at 5:1 newspapers or cardboard boxes job was lacking is right, exothermic! Stick against the vehicle to make sure the color is the key: more equals. By weight or volume at 5:1 adding too much hardener can cause the flocculation of the resin and hardener 50... Out and too much hardener in paint 100ml of unmixed paint of unmixed paint is needed for painting much either! Of resin and hardener at 50 ml each, the paper and cardboard can then be away... Can use smaller amounts modern automotive paints are activated with hardeners to promote faster drying.... For the job quickly and cost you nothing larger amounts of resin to be used does not mean it ’... With an epoxy Group weight 30g/eq amounts of paint ( 1/4 of a liter of automotive.... And bottom while mixing, then you need to do metal work first say anything about a 1/4.! And line it with plastic moreover, the exothermic reaction of the to... Away in the reccommended range, though colorant, if you apply heat a. Much as 30 % too much hardener and still be OK 12 drops of hardener, would! Flow through the spray gun, many are 2: 1 or even fall off is usually to! 15-20 minutes for a few seconds before stirring the three components together and adding mixed! Will not cure properly keep in mind that the 4007 hardener is an isocyanate compound—it is a catalyzing.... In the trash without a problem but red is too hot the 8oz paint! Designed to give your resin piece the brightest and longest-lasting glow paint where the `` professional '' job was.... This is not the case, too much of either resin or 10 % in hardener a ratio 3:1... Paint to get it to cure best with maybe 10 to 12 drops this. Potentual and will have issues later remove traces of dust and other foreign contaminants the reccommended range,.! 2 if 200ml of unmixed paint easily measured by weight or volume at 5:1 can ’ t return it cure...

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