Weather-Koat 201

Weather-Koat 201 Low-Luster Exterior Coating is a water-based, highly flexible coating formulated with 100% premium acrylic resins to provide maximum bond strength.

SKU: 201 Categories: ,
This product comes in a selection of colors. Should you wish to order a special color, please call customer service at 800-275-5628 during our business hours and we’ll be happy to assist you.

This product is not available to order online. Please call our customer service line at 800-275-5628 during our business hours and we’ll be happy to assist you with your needs.

If you need to order quantities of 50 gallons or more, please call us at 800-275-5628 for the best price and to save on shipping.


Weather-Koat 201 Low-Luster Exterior Coating is a water-based, highly flexible coating formulated with 100% premium acrylic resins to provide maximum bond strength to resist cracking, checking and delamination. Additional chemical agents are incorporated to resist the effects of ultraviolet sunlight exposure and the growth of mold and fungus in warm and humid climates. This distinctive product has excellent adhesion, outstanding durability and resistance to staining and weathering.


Weather-Koat 201 Low-Luster is engineered and developed to perform under severe industrial, commercial, institutional, agricultural and residential applications. Use on previously primed or painted exterior concrete or masonry such as pre-cast concrete and stucco, cementitious (hardiboard type) siding and/or trim, EIFS, brick, fiberglass, vinyl siding, wood trim, wood siding, clapboard, plywood, wood shake, galvanized, corrugated and painted metal, aluminum, and porous stone

Product Data

Vehicle: 100% Acrylic Resin
Solvent: Water
Sheen: Low-Luster
Drying Time: 1 hour to touch / 4 hours to re-coat
Weight per Gallon: 11.1 lbs.
Percent Volatile by Volume: 64% (±2)
Solids-Weight: 49% (±2)
Solids-Volume: 36% (±2)
Flash Point: None
Colors: Standard White and Custom Colors
V.O.C.: 0.4 lbs/gal (48g/L)

Environmentally Friendly: Complies with all Federal, State and Local VOC manufacturing standards.
Keep Out of Reach of Children.
Product will freeze below 32°F (0°C).


Maximum adhesion and durability is achieved only when properly prepared. Surface must be dry, clean and free of dirt, grease and mildew. Avoid using cleaners with built-in wax or silicone additives as this may affect coating bond. Remove any trace of mildew by washing with a solution that kills mildew spores. Remove old coating and/or residue that is loose or peeling by scraping, sanding, wire brushing or pressure washing. Make any necessary repairs or replacements to damaged materials. Rusty metal surfaces should be cleaned and primed with the proper material — see Metal-Koat 102 Rust Inhibitive. If substrate indicates chalk, a thorough cleaning is necessary. If chalking remains, apply Mastic Primer 101 as a primer / base coat. Cracks must be repaired prior to coating. Treatment of cracks is required to obtain the water-resistant protection of the building and to help prevent further cracking and deterioration. Methods of treatment depend upon the size of the cracks (see WeatherSeal SA 27 Caulk). Stucco should be cured a minimum of 30 days before application. Weather-Koat 201 can be applied in 7 days to new stucco or masonry if you first apply a primer / base coat of Mastic Primer 101. Weather-Koat 201 can normally be applied, without thinning, directly over quality, fully-cured stucco.

Note: Before applying Weather-Koat 201, be sure that the surface is in sound condition and adhering to the substrate. DO NOT APPLY to badly cracked, chipped or flaking surfaces. Repair before coating. All bare and unpainted substrates may require a primer / base coat — see Mastic Primer 101.


Apply at 250 – 300 sq. feet per gallon to achieve 2.0 – 2.5 mils DFT (wet film thickness per coat should be 5.5 – 7.0 mils WFT). No reduction necessary. Apply with a nylon/polyester brush, roller (3/8″ – 3/4″ nap synthetic cover) maintaining a continuous wet edge or spray equipment (Airless Sprayer – flow output . gpm, minimum pressure 2000 psi, tip size .015″-.019″) while back-rolling with a wet roller to minimize pinholes. Final pass should be completed in a downward direction.

A continuous film should be applied, making sure all surfaces are uniformly coated and free from voids, pinholes, blisters and to insure a uniform appearance and texture. Material requirements will increase with porous, coarse or highly weathered surfaces. Drying time will vary with higher than normal humidity. Do not apply at temperatures below 50°F. Coating should have ample time to surface dry before evening dew sets or if rain is expected.


Clean brushes, rollers, spray and other equipment immediately after use with hot soapy water. After cleaning, flush spray equipment with mineral spirits to prevent rusting.