What is a urethane paint?
Urethane paints are a industry standard for automive paint, and for the past two decades have mostly replaced acrylic paints as automakers' preferred choice. Urethane paints are extremely durable, and resist chipping—when properly maintained, a coat of urethane paint will outlast most acrylic paints.
All automotive paint is acrylic. Acrylic Enamel paint is pigment suspended in an acrylic polymer emulsion. It is fast drying compound that can be diluted with water but is water-resistant when dry. Acrylic Urethane Paint is the same acrylic paint with extra hardeners to add years to the life of your car's finish.
- About Acrylic Lacquer. Acrylic Lacquer is a premium Automotive formulation designed to give a lustrous durable finish. Our formula dries quickly, has superior adhesion to metal, and dries to a high gloss sheen. Once dry, it can be machine or hand buffed for an even glossier appearance.
- Enamel paints are traditionally oil based, while acrylic car paint is always water based. Additionally, acrylic car paint normally results in a matte finish that can then be covered in a clear coat, while enamels naturally dry to a glossy finish.
- You can apply enamel to an acrylic surface but not acrylic to an enamel top coated surface, you can apply acrylic paints to an enamel/oil based primer or enamel/oil based undercoat. Undercoat is used to seal bare areas as well as to coat over primer coat prior to applying top coats.
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.
- Eastwood's high-build Urethane Primer is a two-component primer surfacer designed for overall jobs. its impressive fill qualities and superior flexibility and adhesion make this a perfect choice over Eastwood's Epoxy Primer or original paint.
- Epoxy Primers vs. Urethane Primers… With today's direct to metal (DTM) primer technology you most likely won't need an etch primer to achieve the coating performance you desire. A single primer can give you the adhesion and corrosion protection that previously was only achieved in a two product, two step process.
- To seal the surface and prevent subsequent coats of paint sinking into the substrate and losing gloss. • To stop stains. Special primers can help to prevent stains and tannins from bleeding through into the topcoats and ruining the finished job. This particularly applies to staining timbers such as Cedar or Redwood.
SHERTHANE 2K URETHANE is a 2-component, VOC compliant, aliphatic acrylic modified polyurethane designed for use in industrial environments. A chemical and abrasion resistant urethane enamel. A heavy duty maintenance coating for use in "high visibility.
- The paint consists of different resin, made of acrylic and melamine (the proper title is Two Pack Acrylic Enamel). When you mix your paint, you add a second resin, or hardener, called Poly-isocyanate Resin. At this stage a chemical reaction takes place between the two resins which makes them harden.
- Remove or tape off any windows or non-painted trimming on the vehicle.
- Strip off the old paint in the places that need it.
- Spray only the places that you fixed with primer.
- Wipe down the entire surface.
- Spray the entire surface with your base coat paint.
- Wet-sand the base coat until you get a smooth finish.
- Allow 30 minutes after base coat color has been applied to apply the clear coat. Apply 4-5 wet (but not dripping) coats waiting 10+ minutes in between coats. Each coat should be dry to the touch (not tacky) before moving on to the next. Do not touch the freshly painted panel to test, you can touch the tapeline.
Updated: 2nd October 2019