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The optimum epoxy thickness is 6 mils +/-2 mils or 150 microns +/- 50 microns as measured by either a wet film gauge or a dry film electronic instrument. On larger OD pipe joints and profiles, some thinning may occur.
Is epoxy primer High build?
High Build Epoxy Primer is an epoxy surfacing primer, used where high build and filling is required above the waterline. Ideal for use over Awlgrip primers and fairing compounds, can also be applied directly to pre-prepared wood or fiberglass.
Should I sand epoxy primer before painting?
Thank you in advance! The re-coat window of epoxy primer only needs to be followed when you intend to apply another coating without sanding to from a chemical bond. If you scuff the epoxy you can apply another coating that will form a mechanical bond with the epoxy.
Is primer supposed to go thick?
Primer doesn’t always cover completely. It is not meant to look good. No paint should be applied thickly. For most rooms, with regular drywall or a light color, one coat of primer is sufficient.
What is an epoxy primer?
It is an airtight sealer that protects the primer before the walls are ready for paint. It also acts as a binding ingredient between the concrete, and the topcoat of the paint. Epoxy primer paint protects the walls from extreme weather conditions.
What is the next step after epoxy primer?
1. Sand, recoat with epoxy primer again, sand, and spray with paint. 2. Sand, lay down some 2k primer, sand, and spray with paint.
When should you use epoxy primer?
One-Part Epoxy Primer Epoxy primer works best on bare metal and is recommended for newly-fabricated metal parts or those that have been fully stripped. You can also apply primer surfacer or filler over epoxy primer to get rid of any minor imperfections and to create a flat surface before you paint.
How soon can I paint over epoxy primer?
Epoxy primer has a 72 hour re coat. Product sheet says recoat after an hour I think. Spraying DBU base coat over that. Got done with epoxy about half an hour ago, so will wait another hour or two and shoot the base.
How long does epoxy primer last?
Bottom line is we use to say 3 years once opened, now we say 2 years as we have no control over how it is stored. Stable temps and the use of nitrogen would change everything. Going on 2 years since I opened this can (stored in my house).
How soon can I wet sand epoxy primer?
Based on my general knowledge of epoxies, I would give it at least 2 days in the sun, more if you can. Then use some 220-320 wet sandpaper and sand it smooth. Then apply more epoxy.
What happens if primer is too thick?
Too much viscosity will cause ridges, lumpiness or an orange peel finish. Plus it will drive you nuts if you’re using a sprayer.
What do I do if my primer is too thick?
Add a small amount of clean water to water-based primer or a small amount of mineral spirits to oil-based primer. Keep track of how much you are adding. Stir it in thoroughly, and test spray the board again.
Is it OK to put 2 coats of primer?
Depending on how strong or bold the previous color is, it may be necessary to apply more than one coat of primer. However, it is not necessary to over apply the primer with so many coats. As long as the primer applies uniformly over the previous color, then one or two coats should be sufficient.
What is the difference between self etching primer and epoxy primer?
Self etching primer bonds well to bare metal surfaces and can be top coated in a short period of time. Epoxy primer can be applied in heavy coats which can be guide coated and block sanded to remove small imperfections in the body. Epoxy primer takes longer to dry (cure) before it can be sanded or top coated.
How many coats of epoxy primer do I need?
The epoxy primer should be applied in medium wet coats, allowing a half an hour between each coat at around 70 degrees. One to two coats will render a one millimeter dry film thickness, which is typically enough to be completely effective.
Does epoxy paint need a primer?
One of the most common questions I get with epoxy floors is if it is necessary to prime the floor before applying the epoxy floor coat. The right primer will guarantee better adhesion of your floor coats to the substrate. It will give your floor a longer life and will reduce the risk of the coat chipping or breaking.
Can body filler go over epoxy primer?
Applying body filler over epoxy primer provides maximum corrosion protection for the metal. Apply filler within seven days of applying epoxy primer to maximize adhesion. OPTIONAL: Scuff Epoxy with P120-P180 grit sand paper or red scuff pad. 2 Mix and apply body filler over epoxy.
Can you put epoxy primer over paint?
Epoxy primers have excellent adhesion properties and will stick to bare metal, paints, primers and fillers. This means you can hit an area with epoxy primer that’s been sanded down to bare metal, repaired with body filler, and then feathered into the original paint.
What do you thin epoxy primer with?
Adding 5% lacquer thinner to epoxy reduces epoxy’s compressive strength by 35%. As such, it’s no longer suitable as a structural adhesive. Adding a solvent can extend curing time, making your work unpredictable. Adding a solvent can cause the epoxy to shrink and crack over time.
Can I use epoxy primer only?
Epoxy is very friendly (user friendly) and is very compatible with other products. You don’t have to worry about anything lifting like you might with a Self-Etch primer. With epoxy, you can lay it over just about anything, body work, sanded paint, metal and you’re going to be fine.
Does epoxy primer shrink?
It seems that the epoxy primer and base coat shrinks the least. Although an epoxy hockey puck does have some shrinkage, it is mostly rubbery and maintains its integrity over time. It doesn’t turn brittle like some materials do (clear, 2K, BC).
What is the difference between epoxy primer and 2K primer?
Registered. 2k primer is a build primer for covering slight imperfections, no corosion resistance. epoxy is thin and for first coats on bare steel and the final seal before paint.
Can you leave epoxy primer unpainted?
Re: Leaving DP Epoxy primer uncoated? I know that Epoxy Primer with the Hardner is waterproof and can be left unpainted and is an excellent rust encapsulator.
