No.4 Epoxy Sealer Undercoat is a professional grade primer ideally suited to lengthy new-build or repaint projects where different epoxy surfacers, undercoats and fairing compounds - of different ages - require to be sealed and prepared for final finishing.
In repaint situations where areas of the same job may be spot-filled, have existing sanded polyurethane finish and / or sanded epoxy undercoat, No.4 Epoxy Sealer Undercoat provides an excellent one-step tie-coat and sealer prior to applying urethane finish coats.
No.4 Epoxy Sealer Undercoat may be top-coated with acrylic or polyester urethane finishes and is especially formulated as a sealer under Elite Polyurethane, Elite Pro~Spray, and Boero Challenger HT finishes.
Download: No. 4 Epoxy Sealer Undercoat Data Sheet
No.4 Epoxy Sealer Undercoat is an excellent adhesion coat when applying a new finish over existing aged, and suitably prepared, polyester or acrylic urethane gloss coatings.
Generic Type: Non-Inhibitive Epoxy Primer
Colour: White and Grey
Packaging: (NZ) 1.25 Litre (White Only) and 5 & 10 litre
(Aust) 1.25 litre, 5 Litre, 10 Litre
Two component kits
Mix Ratio: 4 to 1 by volume
Gloss: Low Sheen
Flash Point: -4°C
Thinner: Spray Altex Thinner #12, Brush/Roller Altex Thinner #22
Pot Life: 16 hours at 20°C
Induction Time: 15 minutes
Storage: Store under cool, dry conditions
Density: 1.23 kg per mixed litre
Volume Solids (Mixed): 39%
Theoretical Coverage Rate: 7.8 sq metres per litre at 50 microns dry
Recommended Film Thickness Per Coat: 128 - 192 microns wet to obtain 50 - 75 microns dry
Application: Spray, brush or roller
Dry Times (50 µm DFT / 25°C / 50% RH):
Tack Free : 1 hr
Min. Recoat : 1 hr with itself, 12 hrs with other products
Max. Recoat: Undercover with Polyurethane:14 days without sanding. 3 months with sanding within 7 days of finish coating
Outside with Polyurethane: 10 days without sanding. 3 weeks with sanding within 7 days of finish coating.
Self Recoat: 14 days without light sanding.