What is DTM epoxy primer
Andrew Vasquez
Updated on May 11, 2026
DuPont 2.1 VOC DTM EPOXY PRIMER/SEALER a two-component, non-isocyanate non- sanding primer with superior corrosion resistance and excellent adhesion for direct-to- metal applications. … It is intended for use as a metal treatment under DuPont primer surfacers, or a sealer over DuPont primer surfacers.
What is DTM primer?
DTM Acrylic PriMer/Finish is a 100% acrylic emulsion, waterborne, corrosion resistant coating for both new construction and industrial applications. It can be used as a primer under most water based topcoats or alone as a primer/topcoat system. It can be used directly over multiple substrates.
What is the difference between primer and epoxy primer?
A primer is sandable. However, an epoxy primer is non-sandable. A primer covers scratches, and huge waves. Whereas, an epoxy primer is a non-porous sealer that protects the base primer from the paint.
What does epoxy primer do?
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.Why do we put epoxy primer before painting?
Over Bare, Clean Metal – Epoxy primers are amazing at sealing up bare metal and from allowing moisture or corrosion to creep in. Epoxy primer actually seals out the oxygen from the metal, leaving no chance of rust or corrosion forming on the surface like some cheap spray bomb type primers.
What is DTM paint used for?
DTM paints can be applied to nearly any standard metal surface. Some of the more common compatible substrates include: steel, concrete, masonry, and aluminum. The applications of DTM paint can be very diverse within the context of painting and protecting metal surfaces.
Do you need primer with DTM paint?
PR: Since DTM products don’t require a primer, you’re only applying one coat versus two. … Not only is there the reduction in an entire coat but the opportunity for over-spray is also reduced, further eliminating wasted material.
When can you paint over epoxy primer?
The time between primer and paint is going to depend on which epoxy primer you use, the temperature of the shop and how liberally the primer is applied. I usually wait until the primer is dry to the touch and won’t show a finger print when touched lightly.Does epoxy primer stop rust?
Epoxy primer actually seals out the oxygen from the metal, leaving no chance of rust or corrosion forming on the surface like some cheap spray bomb type primers. … Two-part epoxy primers go one step further by including zinc phosphate, which increases its corrosion-inhibiting properties.
Can you spray epoxy primer over rust converter?Use oil based or epoxy paints to paint over Rust Converter, do not use Latex or water based paints. How many coats of Rust Converter should I apply? Many applications require one coat. We suggest applying a second coat to assure complete coverage and conversion.
Article first time published onIs epoxy primer better than etching primer?
Some advantages of Epoxy over Self-Etch: With epoxy, you can lay it over just about anything, body work, sanded paint, metal and you’re going to be fine. With Self-Etch, if put it over different layers of paint, if put on too wet, it’s going to lift because Self-Etching primer has acid in it.
Can you apply epoxy primer over body filler?
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.
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. Make sure to evenly spray each coat completely across the bare metal surface.
Is self etching primer the same as epoxy primer?
Epoxy primer is catalyzed and self etching is solvent based. 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.
How long is epoxy primer good for?
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 long does DTM paint last?
How Long Does Dtm Paint Last? The cheapest “primed & painted” rails are available from many builders. A good rust-proof product will offer a 12-year guarantee. They use galvonized steel, dip them, and use powder electrostat, (plus an elamel coating).
How do I prepare for DTM paint?
- Scrape off large rust spots with a wire brush. …
- Scrub off smaller rust deposits with a scouring pad.
- Wash the surface with soap, water and a rag. …
- Lay plastic sheets and painter’s tape over nearby items. …
- Spray DTM paint onto the surface with an airless spray gun.
Is DTM paint acrylic?
DTM Acrylic coATing is a 100% acrylic, water reducible, corro- sion resistant coating for light to moderate industrial use. Designed for new construction or maintenance use and can be used directly over prepared substrates.
Can you paint wood with DTM paint?
ByBrittney. A tough waterborne acrylic enamel that fights rust on metal, Acrylic DTM Enamel is a smooth, durable finish on wood, drywall, and masonry substrates.
Can I use DTM paint on wood?
Can be used on galvanized and aluminum metal Acrylic DTM Enamel is a tough waterborne acrylic enamel that fights rust on metal and provides a smooth, durable finish on wood, drywall and masonry substrates.
How long does it take DTM paint to dry?
DTM Acrylics will dry to the touch in 30 minutes and may be re-coated in 2 hours. High humidity and low temperature conditions will extend normal dry and re-coat times.
Can you spray epoxy primer over old paint?
Can You Paint Epoxy Primer Over? The paint should be fine and won’t lift if it’s not. … If the primer is a prepared sanded surface, spraying it over paint is not a problem.
Is epoxy primer waterproof?
Epoxy has several distinct advantages over standard primers. … Because it’s waterproof, its excellent corrosion resistant properties make it the only base primer to use, especially if you reside in a damp climate.
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.
Can I paint latex over epoxy primer?
No type of paint will bond to unprepared epoxy paint. Because epoxy painted surfaces don’t allow adhesion, they must be abraded before they will accept new paint.
Do I need to scuff epoxy primer?
It just needs to be scuff to help the 2K primer adhere to the epoxy. You could do it but not really needed. If i was painting over the epoxy, then i would sand the entire car again for sure and re-apply before base. See this epoxy primer I use can be sanded with 320 grit and painted over.
What is a good epoxy primer?
- Custom Shop Black Epoxy Primer/Sealer KEP 406/KEP 402 : Best Overall.
- Speedokote Epoxy Fast Dry 2.1 : Quickest Drying.
- SprayMax 2K Activated Epoxy Primer : Best For Small Jobs.
- Raptor Anti-Corrosive Epoxy Primer : Best For Already Rusty Surfaces.
- Rust-Oleum Automotive 2-in-1 Filler And Sandable Primer : Best Budget Option.
Is Rustoleum primer epoxy?
Rustoleum 2K Epoxy Primer is a true two component, amine cured epoxy aerosol rust inhibitive primer. … This primer can be used on clean steel, sound rusted steel, galvanized steel, aluminum, and sound previously coated surfaces. Primer may be wet or dry sanded.
What is the best paint to use on rusted metal?
If the surface still has extensive rust after all loose rust has been removed, start with Krylon® Rust Protector™ Rust Converting Primer or Krylon® Rust Tough® Rust Fix. This primer chemically changes rust into a waterproof, paintable surface. Spray directly over the remaining rust to protect against further corrosion.
Can epoxy primer be sanded?
(Q) Can I sand this Epoxy Primer? (A) Yes. If you wait about two or three days, you can sand this primer.
Can you use epoxy primer on aluminum?
In order to achieve a quality painted finish on bare aluminum, you must first clean the metal with PRE Painting Prep or some type of solvent. … Now mix and apply Epoxy Primer directly on to the bare aluminum. If a normal primer is used the paint has a chance of peeling or flaking later on.