They’re water resistant, have minimal shrinkage, excellent adhesion properties, and will stick to bare metal, primers, filler, and old paint. But, if two coats are sprayed the wait is 60 to 90 minutes. #475 is high hiding, … Then, the primer is sanded and one coat of sealer is applied. After spraying the poly primer, block-sand it with 80-grit to flatten the surface. Another nice feature of the 5300 series primers is that they can be reduced and used as a silky-smooth sealer which allows you to use one product instead of having to buy a dedicated primer and a dedicated sealer. Ready to brush, roll or spray, it can be top-coated after … When using 2K products, the best way to avoid problems is to only use the hardener or catalyst designed to go with that product. Polyester Primer - Polyester auto primer has what's known in the auto world as excellent "build" - it fills small scratches and dings much like a putty or filler would and has the highest filling capability of any sprayable primer. ... High Build Epoxy Primer. K36 is a standard-build urethane primer. Follow the instructions for mixing and flash times (dry times in between coats). #475 has good sealing properties and enamel hold-out. Automotive High Build 2K Urethane Primer Gray Quart Kit . How long can the product sit until it needs to be sanded before painting over it? These three coats are one round. This makes it perfect for filling bodywork blemishes AND achieving a good paint bonding surface at the same time. Primer surfacers shrink when flash times (usually 5 to 10 mins) are ignored. Understanding how paint works is the key to getting that perfect paintjob! Missing that window is one of the biggest mistakes painters make. High Build Primer & Sealer (15) Lead Primer & Sealer (5) Magnetic Primer (1) Metal Primer (15) Mold & Mildew Primer & Sealer (5 ... Click to add item "Zinsser® Block Filler 2X Interior/Exterior High Build Primer" to the compare list. It sands easily and is perfect for getting those wavy panels straight. https://www.sherwin-williams.com/homeowners/products/high-build-primer Here’s what will happen if you cheat by just a small amount of time. Follow the recoat rules on the tech sheet. KD3000 is a hybrid epoxy two component primer, designed to be used as a Direct to Substrate (DTS) high or medium build surfacer and sealer. The thicker or heavier the coat, the longer it takes for the solvents to gas out. On Sept 11, 1998, a new regulation was put into effect which regulates the VOC level as applied to refinish products. Priming your drywall with a PVA primer will seal the surface and provide a bonding opportunity for your paint. Then do most of the sanding with 180-grit, and finish with 220. The most important distinction you need to understand is that a primer surfacer is intended to be sanded while a primer sealer is not. The tech sheet will tell you the recoat windows for the product. Always check the product sheet to know what works best for the poly primer you’re using. Spraying a light guide-coat on the surface prior to sanding shows the high and low areas, and helps keep the body lines straight as you sand. The paint is sprayed onto a sanded surface, and the sanded surface provides “teeth” to help the paint stick. Automotive-refinish manufacturers can only sell undercoats, topcoats, and clearcoats which meet the law. of Hardener 4.2 out of 5 stars 41 Zinsser Cover Stain Interior/Exterior Oil Primer – Maximum Shine Primer. 167 sold. Each product is different, so make sure to read through the product sheet before priming. In order to create a waveless surface, you have to build up your layers of primer. This is not true. The best way to get that pearl color to glow. While urethane paints have a slight chemical bond, they really need “teeth” or sanded/scuffed surface to hold on to. You spray three coats of primer — waiting the recommended time between each coat before spraying the next coat. Thanks to the availability of Internet information, anyone who has ever sprayed a coat of paint can post their expertise online. Polyester primer is a very thick two-part product and is used when there’s a good deal of bodywork. Can you go without it? If you’re doing a one-color paint job, sure the paint will look great — at first. Build your own custom newsletter with the content you love from Chevy Hardcore, directly to your inbox, absolutely FREE! Gray Urethane Surfacer A Urethane Surfacer that is intended for use as a high build surface. KILZ Hide-All® primer is a high hiding, fast drying, multi-surface latex primer sealer formulated to minimize problems caused by dark colors, minor surface marks, textures and porosity differences. Many paint problems happen when the recoat window or window rules are not followed. 4.5 out of 5 stars ... (69) 69 product ratings - 1 Gallon U-Pol 4:1 High Build Gray Auto Primer Filler, Surfacer & Sealer UP2253 . In many cases, you … This will provide the flat surface you want. It can reduce the cracking and peeling or the top coat paint by remaining flexible over the life of the paint. Many clients ask their painters to use lacquer. K201 catalyst can be used with either one. We'll send you the most interesting Chevy Hardcore articles, news, car features, and videos every week. This is just an example, as all products will be different. Dynacoat ValuePrime Grey is a general use urethane primer surfacer. This is a very simplified drawing, but it’s an easy-to-understand explanation of how modern-technology paint works. Are Your Hot Rod’s Fluids Ready For Summer Cruising? Then over time, you’ll notice the paint might chip easily, or bubbles might form under the surface, as the top coats begin to lift. What grit of paper do you need to use? Understand that epoxy primer will not stop or neutralize any rust that has started or is already present. Wait times can be critical with sealer. The epoxy primer needs to "vent" solvents prior to spraying the primer surfacer. Simply reduce it 50 percent and lay a coat or two down to seal up all of your work and have a … Spray three or four coats, then block sand level and smooth. Interior Drywall P.V.A. The KD3000 Series has excellent adhesion, corrosion resistance, durability, productive dry times, and ease of sanding. Next time, we’ll take a close look at basecoats, and teach all you ever wanted to know about solid colors, metallics, candy, flake, and pearls. It’ll protect the … High End. Too short a wait time, and solvents might be trapped. BEHR PRO High Build Interior Primer is recommended for new and previously coated drywall and plasterboard walls and ceilings. Dynashade LV Primer/Sealer is a low-VOC surfacer and sealer offering total flexibility, quick dry time and great coverage. Here’s part of my library of tech sheets. While polyester primers are great for filling, they can be porous. Once you’re finished sanding the polyester primer, use a urethane primer or a sealer over it. Primary use: fill, sandability, and holdout. VOC is measured in pounds of VOC per gallon. Looking for a quality epoxy primer for your boat? K38 is a high-build primer. Plastic Primer is a clear, easy to apply and fast drying adhesion promoter for bare plastic parts. Some of the best drywall primers are: Benjamin Moore Fresh Start This high hiding acrylic interior primer is great because it has a high build and covers real well. Let’s start by dispelling one of the most common misconceptions. I spray one wet coat, wait about 30 minutes, then continue with the basecoats. A white sealer under a light basecoat, helps the topcoat to have better coverage. Think of epoxy primer as the foundation for your paint. It combines high filling and hiding strength with process flexibility. What happens when you try to paint in colder or warmer temperatures than recommended in the tech sheet? Most catalyzed primers start to harden in about an hour. 1K Primer Surfacer Grey is a fast drying, easy sanding high-build primer, providing excellent performance where a 1K surfacer is desired. The term pot-life applies to 2K (two-part) products. Think of it as a sprayable body filler. 2K HB Primer Surfacer High-build urethane surfacer Urethane primers also have great filling qualities. The basecoat dries for one hour (recoat window), and two coats of urethane clearcoat is sprayed. Let it dry completely. This is an area where many make the mistake of applying a primer surfacer (high build, sandable primer) directly to bare metal. Now, I don’t even consider painting without first spraying sealer. That information — plus recommended air pressures and wait times — can be found in the product sheets. A high-end job comes with a high-end price: Prepare to spend between $2,500 to. Automotive High Build 2K Urethane Primer Gray Gallon Kit, Fast Dry, SMR-210/211. Chances are, something is going to go very wrong, and you will never know the real cause of the problem. The tech sheet for the sealer says it needs to dry for 30 minutes (another recoat window), and then one round of three coats of basecoat-color can be sprayed. This is an oil-based … You can also start by wet sanding with 400-grit wrapped around a Durablock, or whatever block you feel will work best for the surface. Let each coat flash (dry dull) before applying the next. Multipurpose primer offering the functionality of ‘3 products in 1’. So, epoxy primer first, primer surfacer over that. Interlux InterProtect Epoxy Primer Kit. Compare. It’s rough enough to sand it quickly and flatten out any small imperfections. A non-sanding primer sealer designed to create a uniform surface for a seamless repair. MP213 GP Sealer Primary use: adhesion and topcoat holdout. Paint companies have responded by creating water-based paint and solvent products that are VOC compliant. Do not use a hardener meant for one product with a different product. It doesn’t matter if your buddy tells you, ”Sure use that, I do it all the time.” You take a chance when using a hardener that goes with a different brand of paint or filler. If spraying two coats, the product must dry overnight before applying over body filler. Here’s a timeline for the average paint job. Modern paint is easier to use, looks better, and is much more durable that any lacquer paintjob. First, you need to know how to prepare the surface. Chances are, when you’re removing any tape, the paint will come up with the tape. Evercoat’s Super Build 4:1 is a two-part polyester primer surfacer with great filling capabilities to help get the surface flat. KILZ PREMIUM 5 Gal. There are two paint “windows” that affect the outcome: The recoat window between coats of paint, and the recoat window before painting another round. People toss around terms like primer, sealer, two-part paint, tri-coat, lacquer, single-stage, and it can get confusing. A paintjob is only as good as its foundation. K38 is a high-build primer. Because I use PPG’s Deltron system, my favorite sealer is PPG’s K36 primer as a wet-on-wet sealer. Standard conditions are temperature, humidity, and air flow under which an automotive paint product’s dry time, cure time, pot life, and all general performance characteristics are determined. If you do not have the correct hardener to go with the stuff you’re using — stop, and wait until you get the right hardener. Wet sanding epoxy primer is usually the best way to prep it because epoxy has a tendency to clog paper when sanded dry. Surfacers are designed with fillers and pigments that make them easier to sand and powder when cured. Available in 6 colours, this primer can be intermixed to produce a wide range of colours. What it can be sprayed over and how to prepare the surface, the kind of spray gun that should be used, the air pressure needed, how the coat should be applied, recommended number of coats, time between coats, recoat windows, and dry times. The urethane primer is much denser and seals the polyester surface. 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