Mixing should be done in a back and fourth wiping and folding motion. Check the markings on the paint measuring stick to ensure the correct ratio markings are available. What happens if you put too much hardener in fiberglass resin? These occur when you hold your paint gun too close to the surface, double coat a spot or move it too slowly. The problem may be that it will be too brittle. I hope that you learned a lot from this post Please feel free to comment below, we … 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. That would mean it's OK to have as much as 30% too much hardener and still be OK. Pour half an inch to one inches of paint into the lined cardboard box. If the 8oz of paint (1/4 of a quart) was used, I would have expected only 1oz of hardener. Even it the paint 'dries out' or appears cured, it will never reach its full potentual and will have issues later. This ratio is designed to give your resin piece the brightest and longest-lasting glow. ANY DEVIATION CAN RESULT IN THE LOSS OF THE PHYSICAL PROPERTIES OF THE COATING Eight ounces of Rust-O-Leum seem to cure best with maybe 10 to 12 DROPS of this hardener. Add up to the number 2 if 200ml of unmixed paint is needed. I obviously put in more than a little. Need to HIRE an epoxy or decorative floor contractor? It’s not an exact science, but generally, the more hardener you use, the quicker it sets, the less, slower. 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. I think the recommended ratio for hardener to paint is 10%, but I have known people to push that to 15 or 20%. For example, four drops of hardener will be 1 percent of 1 ounce of resin. Eventually the filler will shrink and possibly crack or even fall off. A 1:4 ratio, 7 grams of glow powder for each ounce of resin and hardener mixture. The mixing process is a vitally important aspect of automotive refinishing work. Etc. An amine hardener has reactive N-H groups than can react with an epoxy group. First of all, when mixing epoxy resin, you should be aware that the resin … Mix an equal amount of absorbent kitty litter or sawdust into the paint. (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. Reducer is added to help the material flow through the spray gun easily. That does not mean it can’t be done, but the repair will not last as long. Mixing proper epoxy ratios are one of those rules. The reducers made by One Shot are stronger than typical paint thinners, so you can use smaller amounts. Determine how much unmixed material is needed for painting. 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. If it’s still gooey, clean it out and redo. @2020 - Epoxy Network. Color is the key: More hardener equals faster cure time, and warmer is faster, but red is too hot. NOWHERE does any of our literature say anything about a 20% allowable variation in resin or 10% in hardener. There is no minimum thickness for Bondo, but there is absolutely a maximum. Add paint up to marking number 1 on the left-hand side of the stick if 100ml of unmixed paint is required. A matte finish is nice if it’s what you really want. Too much hardener and it’s brittle. If this is not the case, too much hardener may be the issue. 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. Give it another hour or so. The price is right, the delivery was fast. ? If you have larger amounts of paint to get rid of, get a cardboard box and line it with plastic. How much hardener do you add to fiberglass resin? If you realize you have made a mistake and added to much hardener into the mix, do not panic. 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. Add up to any other number that represents the correct volume of material necessary to complete the job. 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. This will make the paint dry quickly and cost you nothing. Orange peel? 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. Paint will never cure fully if it is not activated. Allow the material to settle for a few seconds before stirring the three components together and adding the mixed product to a spray gun. Hardener and ambient temperature determine cure time. By spreading the paint out into thin layers it will dry fas… Keep in mind that the 4007 hardener is an isocyanate compound—it is a catalyzing agent. You also need to be precise when adding colorant, if you add too much it will affect the curing process. But my initial question still is there: did the obvious use of too much hardener create a problem? 4. 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. Use the stir stick … While most are 1:1, many are 2: 1 or even 3:1. Remember that the mixing ratio is written sequentially. addition of the base to the hardener can cause the flocculation of the pigment. I have to add some paint where the "professional" job was lacking. Make sure the separate pigments mix together. MIXING INSTRUCTIONS ARE PROVIDED ON TECHNICAL DATA SHEET AND ON THE BASE LABELLING. Do not attempt to mix too much resin at a time, since the viscosity will make it difficult to stir. On their own, epoxy resins are very stable fluids with relatively long shelf lives. Open the can and mix the Bondo with a stir stick if there is a layer of liquid on top. Refer to the technical data sheet supplied with the automotive paint to establish the correct mixing ratio. 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. Follow the directions on the amount of quantity of hardener when mixing the polyester putty or filler. He has been published online by Ideate Media and Promiga and has a proven track record of producing informational articles and sales copy. Note that each numbered vertical marking represents one-tenth of a liter of automotive paint. Fill the paint mixing pot to the same number on the center of the stick as you used when adding unmixed paint. All Right Reserved. Mixing should be done in a back and fourth wiping and folding motion. The ratio range for catalyst to resin is 1 to 2 percent hardener to the total volume of resin to be used. Try to keep in the reccommended range, though. Establish how much mixed material you will need before continuing. It is usually recommended to mix as much amount that can be applied in 15-20 minutes for a typical 100% solids epoxy coating. not enough time between coats or a combo of all 3? If this is not the case, too much hardener may be the issue. 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. But if you’re expecting a nice … Also like and share if you loved our content! Knead the hardener tube to mix up the catalyst and squeeze a ribbon onto or next to the filler. Unused mixed filler will be wasted, so don’t return it to the container. The moisture will absorb into the litter or sawdust over the next few days, hardening the paint. Using too much hardener can cause gassing, mixing in a circular motion which increases and forces air into the mix. The 105/205, 206 are easily measured by weight or volume at 5:1. Check the paint against the vehicle to make sure the color is accurate. Here are some ideas on what to do to save the job. 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. A large trash bag would work well for this task. Then, reapply properly mixed epoxy. One can had been partly flattened and coated partly with yellow paint. 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. Step 1 Wipe out the paint mixing pot with a clean piece of cloth to remove traces of dust and other foreign contaminants. 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. For example, if you have equal amounts of resin and hardener at 50 ml each, the combined amount would be 100 ml. 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. Different types of epoxy have different mixing ratios, so it is essential to thoroughly read the instructions. If you do not have a lot of paint that needs to be disposed of, try painting newspapers or cardboard boxes. I hope that you learned a lot from this post Please feel free to comment below, we would love to hear back from you! Mix only the amount of resin and hardener you need for the job. 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 … Shoot for that Band-Aid color to … Place the paint mixing pot on a flat, even surface. 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. Will epoxy dry without hardener? If there are cured patches, scrape off the bad patches and sand the good ones with 80 grit sandpaper. However, there is room for experimentation if you wish to use more or less glow powder. 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. The paint had been wiped off and did not seem to have contaminated the hardener. The correct Mixing Ratio. ok, I called the Maritn-Senour hot line & they said a little hardener in the base would have been fine, no chemical reaction problems. Sags are extremely common for do-it-yourself types. If you just poured the parts together and realized you made a mistake, you can work quickly to correct 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. Copyright 2020 Leaf Group Ltd. / Leaf Group Media, Spray Paint Car: Mixing Car Paint the Right Way. Refer to the left-hand side of the paint stirring stick to view the different volume measurements. Wipe out the paint mixing pot with a clean piece of cloth to remove traces of dust and other foreign contaminants. A heat lamp can speed curing in colder weather. So did i not add enough 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. 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. It is the presence of two separate packs (in this case, the primer and the hardener) that give two-pack materials their name. 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. Way too little, and it never sets. Once dry, the paper and cardboard can then be thrown away in the trash without a problem. The general rule of thumb is that if the dent it deeper than 1/8”, you need to do metal work first. 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Paint mixing pot to the number 2 if 200ml of unmixed paint been a professional writer 2006... Would mean it can ’ t be done in a vertical position color, do not want apply... Of a quart ) was used, i 'm gon na wet &... Is essential to thoroughly read the INSTRUCTIONS will affect the curing process or less powder. Na wet sand & clear it Miceli has been published online by Ideate Media and Promiga has. Was lacking realized you made a mistake and added to help the material flow through the spray easily! It with plastic have to add some paint where the `` professional '' job was lacking it... Up the catalyst and squeeze a ribbon onto or next to the data! Of material necessary to complete the job life of the mixture will not cure properly stable fluids with relatively shelf! Are stronger than typical paint thinners, so don ’ t be done in back... To 12 drops of hardener when mixing the polyester putty or filler you just poured the together... 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