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Karnak 180 Karna-Sil Water-Based Epoxy Primer, Parts A & B, 5 Gallon
Regular price $315.77Orders start at $399 — combine any items to reach the minimum. Learn more
Karnak 180 Karna-Sil Water-Based Epoxy Primer, Parts A & B, 5 Gallon
Karnak 180 Karna-Sil Epoxy Primer is a two-part, water-based epoxy primer supplied as Part A (white, 5 gal) and Part B (black, 5 gal), mixed together at a 1 to 1 ratio. It primes and prepares built-up asphalt, modified bitumen, concrete, metal, masonry, TPO, PVC, Hypalon and EPDM surfaces before applying Karnak silicone coating. It can be applied on vertical as well as horizontal surfaces.
Key Features:
- Two-part system: Supplied as Part A and Part B, mixed together at a 1 to 1 ratio.
- Water-based epoxy: A water-based epoxy primer formulation for roof coating preparation.
- Wide substrate range: Primes BUR, modified bitumen, concrete, metal, masonry, TPO, PVC, Hypalon and EPDM surfaces.
- Vertical capable: May be applied on vertical as well as horizontal surfaces.
- 5 gallon pails: Each part is supplied in a 5 gallon pail.
- Silicone prep: Used prior to applying Karnak silicone roof coating.
Specifications Table:
| Specification | Details |
|---|---|
| Brand | Karnak |
| Sell unit | 1 pail, 5 gal (per part) |
| Product line | Karna-Sil 180 Epoxy Primer |
| Available colors | ['Part A: White', 'Part B: Black'] |
| Available sizes | ['Part A 5 gal', 'Part B 5 gal'] |
| Material | Water-based two-part epoxy primer |
| Mix ratio | 1 to 1 (Part A to Part B) |
| Intended use | Priming roof surfaces prior to Karnak silicone coating |
| Application surfaces | BUR, modified bitumen, concrete, metal, masonry, TPO, PVC, Hypalon, EPDM |
Fit and Compatibility:
Formulated to prepare substrates for Karnak silicone coating systems. Mix Part A and Part B individually first, then combine and mix thoroughly; mechanical mixing is recommended. Part A is a slurry liquid that settles, while Part B is a viscous liquid.
Frequently Asked Questions (FAQ):
Q: What is included?
A: This page lists two items: Part A (white, 5 gal) and Part B (black, 5 gal); both parts are needed and are ordered individually.
Q: What is the mix ratio?
A: Parts A and B are mixed together at a 1 to 1 ratio.
Q: How do I mix the primer?
A: Mix each component individually first, then combine and mix thoroughly; mechanical mixing is recommended because Part A is a settling slurry and Part B is viscous.
Q: What surfaces can it prime?
A: Built-up asphalt (BUR), modified bitumen membrane, concrete, metal, masonry, TPO, PVC, Hypalon and EPDM.
Q: Can it be used on vertical surfaces?
A: Yes, the primer may be applied on vertical as well as horizontal surfaces.
Q: What coating does it pair with?
A: It is used prior to applying Karnak silicone coating.
Expert Verdict — Reviewed by the SuperArbor Pro Desk
Use 180 Karna-Sil whenever you are transitioning an aged asphaltic, single-ply or concrete roof to a Karnak silicone restoration coating, since adhesion on those substrates depends on proper priming. Because Part A settles, agitate each component before combining and use mechanical mixing for a uniform 1:1 blend. Plan quantities by substrate porosity and order equal volumes of Part A and Part B.
Wear appropriate personal protective equipment and follow the safety data sheets when handling and mixing two-part epoxy primer components.
Order Karnak 180 Karna-Sil Epoxy Primer Parts A and B to prepare your roof for silicone coating.
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