Table of Contents
4. Use it For a Final Sealer – A cool trick we’ve been doing for the past few years is using our epoxy primer as a final sealer before our base coat. The primer has excellent adhesion to most topcoats and will help keep actual paint from flaking or peeling. This is great peace of mind for a lasting paint job.
Is epoxy primer same as sealer?
Epoxy primer is a sealer that produces a good surface finish on applied top coats. A two-part epoxy primer contains zinc phosphate, which acts as a corrosion-inhibiting pigment. Epoxy primers can be used to waterproof materials that consequently protect the bare metal from oxidation.
Can epoxy be used as a sealant?
Epoxy sealers are much harder than acrylics. Water-based epoxies bond well to concrete and provide a clear finish, but they are nonporous and do not allow trapped moisture to escape. Epoxies are probably the best choice for concrete countertops and food-preparation areas.
Can I use primer instead of sealer?
Sealer paint can be used as a substitute for a primer, or before the primer is applied to the base surface. The main purpose of sealer paint is to provide good adhesion between the substrate and the new paint or the primer.
Can you epoxy over primer?
By applying a coat of primer you can see how the existing substrate will react to the epoxy. This way you can take precautionary measures before it is too late to act. Use primers to seal off the surface before you apply the paint coats. An extra coat of primer may actually save you on consumption of epoxy paint.
When should epoxy primer be used?
Simply put, epoxy is the best primer for bare metal, making it excellent for newly fabricated metal parts or ones that have been fully stripped. 2. Mixed Surfaces – Some primers and coatings need the entire surface to be uniform and all the same material.
What is the difference between concrete sealer and epoxy?
They produce a hard, abrasion-resistant, long wearing surface. Epoxy coatings are available in clear or can be colored. They are water repellent, however, different than acrylic sealers they are non-porous and do not allow the trapped moisture to escape. Epoxy sealers are harder than acrylic sealers.
Is sealed concrete the same as epoxy?
Epoxy floor coatings are chemically different than urethane coatings, but they are often used in tandem on concrete floors. Epoxy and urethane coatings tend to be more expensive than a simple concrete sealer, but they offer better protection.
Does epoxy adhere to concrete?
Most epoxy glues for concrete come as two-part systems consisting of an epoxy resin and a hardener. When equal volumes of the resin and hardener are mixed, they react to produce a tough, rigid, high-strength bond. You can use epoxy resin for concrete to repair, fill, bond, and rebuild concrete surfaces.
Can you spray base coat over epoxy primer?
Base over fresh epoxy is the best way to do it. Reduce your epoxy 1:1:1 so it is a thin “sealer” coat and it lays down texture free. Sand to atleast 320 before epoxy sealer.
Does epoxy primer need to be sanded?
If the thinner/reducer rag does not have any epoxy primer transfered to it then the epoxy is “cured” and needs to be sanded.
Is epoxy primer safe to spray?
When an epoxy primer is sprayed and is airborne it should be treated with the same respect as a 2 pack paint. Required Protection: If you’re spraying (or near someone spraying) epoxy primer then you need full respiratory protection. Check with the manufacturer of the primer to see what you need).
Do you have to seal primer?
Yes a ‘sealer’ is required and yes you’re done because epoxy-primer is the ultimate ‘sealer’.
Can I paint over sealer?
You can’t apply paint over an acrylic concrete sealer and expect it to bond for very long. There aren’t any pores in the concrete for the paint to absorb into and stick to the concrete. They have all been filled with the primer, paint, and sealer you have already applied.
What’s the difference between automotive primer and sealer?
It creates a bond between properly sanded primer and the basecoat paint. Sealers help the paint to stick, and can reduce the chance of having the topcoat paint run. Sealer fills those light sand scratches and can diminish very slight imperfections. The sealer also helps to “seal” the surface.
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.
How long does epoxy floor primer take to dry?
Additional Product Data Size 1kg, 2.5kg, 5kg & 10kg Thickness Dry film 150-200 microns Substrates Concrete Ambient Temperature 5-30 Degrees (application) Drying Time 20 hrs.
Should I seal before epoxy?
Delicate objects that may be damaged by epoxy resin such as photographs, should be sealed with an alternate clear coat (i.e. polyurethane or acrylic sealers) to protect them prior to embedding.
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.
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.
What is the difference between epoxy primer and urethane primer?
Since urethane is only a primer surfacer, you’ll also need to apply a sealer before you paint. Again, a coat of epoxy primer over the top will serve the purpose. Filler primer paints are basically formulated to fill in any pits in the surface from sanding or rust even quicker than an epoxy primer alone.
How long does epoxy sealer last?
Epoxy and urethane systems last between 5-10 years, closer to 5 if the surface experiences heavy traffic. Reactive penetrating sealers are the longest lasting concrete sealers, wearing away only if the substrate surface itself wears away.
