Description:
Premium Acrylic Finish (PAF) PW is a 100% acrylic architectural finish designed to provide durable, decorative surfaces for interior and exterior stucco assemblies. The finish incorporates Dirt Pick Up Resistant (DPR) technology which reduces the adhesion of airborne contaminants to the surface, helping maintain a cleaner appearance over time.

​

PAF PW is suitable for application over properly prepared cement plaster basecoats, Crack Resistant System (CRS) reinforced assemblies, masonry substrates, EIFS basecoats, and other approved substrates. The finish is available in multiple textures designed to achieve a wide range of architectural appearances.

​

PAF PW is the only finish within the Premium Acrylic Finish product family designed for use in both stucco and EIFS systems and assemblies.

​

Packaging:

• Product is packaged in 5 Gallon / 65 lb pails

• 36 pails per pallet

​

Premixed Color pails are available per regional production. PAF Color Pak units are packaged separately for use with PAF PW materials.

 

Product Uses:
PAF PW is used as a decorative and protective finish coat over:

​

 

• Western 1-Kote exterior stucco systems

• Western One-Pass exterior stucco systems

• Conventional three-coat stucco systems

• Crack-Resistant System (CRS) reinforced stucco assemblies

• EIFS reinforced basecoat assemblies

• Properly prepared masonry and concrete substrates

​

Benefits:

• DPR technology helps maintain a cleaner surface appearance

• Durable 100% acrylic binder provides excellent weather resistance

• Flexible coating helps resist hairline cracking

• Factory blended for consistent color and texture

• Wide variety of textures and colors available

• Compatible with WBP acrylic color systems

​

Coverage:
Coverage varies depending on selected texture, substrate condition, and application technique.

 

Approximately:

• Smooth PW: 130–150 square feet per pail

• Fine PW: 110–130 square feet per pail

• Medium PW: 100–120 square feet per pail

• Coarse PW: 80–100 square feet per pail

​

Mixing:
PAF PW is supplied ready for use.

​

Prior to application, thoroughly mix the material using a slow-speed mechanical mixer until a uniform consistency is achieved.

​

If necessary, a small amount of clean potable water may be added to adjust workability not exceeding 8 oz per pail. Do not over-dilute the material.

​

Tinting is accomplished by incorporating WBP PAF Color Pak units into the pail.

​

Base Finish + PAF Color Pak Mixing:
When using Base Finish material with PAF Color Pak:

1. Add full PAF Color Pak contents per batching instructions directly to the pail.

2. Mechanically mix thoroughly to ensure complete pigment dispersion.

3. Continue mixing until material color is uniform throughout the batch.

4. Small amounts of potable water may be added if necessary to adjust workability not exceeding 8 oz per pail.

5. Incomplete blending of pigment may result in color inconsistency.

​

PW Elastomeric Additive:
PAF PW may optionally be modified using PW Elastomeric Additive.

​

When mixed into the finish pail, the additive converts the coating into an Elastomeric Acrylic Finish with enhanced flexibility and crack-bridging performance.

​

This modification is commonly used when increased movement accommodation or additional weather protection is desired.

Mix the additive thoroughly into the finish using a slow-speed mechanical mixer until a uniform consistency is achieved.

 

Application:
PAF PW shall be applied over properly prepared and fully cured stucco basecoats, EIFS reinforced basecoats, masonry substrates, or other approved substrates.

​

Substrates must be clean, dry, structurally sound, and free of dust, dirt, efflorescence, oils, curing compounds, or other contaminants that may interfere with adhesion.

​

Application of Multi-Use Primer (PAF Primer) prior to installation of the finish coat is recommended to improve adhesion and color uniformity. Primer may be used at the discretion of the applicator and is required where higher system warranty tiers are specified in the applicable WBP system warranty schedule.

​

PAF PW may be applied by stainless steel trowel or approved spray equipment. Apply the material uniformly to a thickness consistent with the selected texture and work to the desired architectural appearance while maintaining a continuous wet edge.

​

Curing:
Protect freshly applied material from precipitation, freezing temperatures, and rapid drying conditions until the coating has properly cured.

​

Allow sufficient drying time before exposure to heavy moisture or adverse environmental conditions.

 

Finishing:
After initial application, the finish may be floated or worked according to the selected texture profile. Work the material uniformly to achieve the desired architectural appearance and consistent texture.

​

For finer textures such as Smooth, Super Fine, and Fine, a double-coat application is strongly recommended. Applying a second coat helps ensure complete coverage and minimizes the potential for basecoat shadowing or substrate telegraphing when the finish is applied unevenly.

​

Field sample panels are recommended prior to project installation to verify color and texture.

 

Limitations:

• Not a waterproofing membrane.

• Protect from freezing

• Does not prevent cracking caused by structural movement, substrate instability, or improper joint placement.

• Smooth finishes are more susceptible to cracking and color variation.

• Control joints shall comply with project drawings and specifications prepared by the design authority, or ASTM C1063.

​

Do not apply when surface or ambient temperatures are at or below 40°F / 4.4°C or above 100°F / 38°C. Do not apply to surfaces that are contaminated with bond breakers, oils or other matter that may affect the performance of the product. Do not apply if conditions are expected to be above or below the specified temperature range within 24 hours of application. Do not add additional ingredients without specific written approval from an authorized manufacturer of Western Blended Products.

 

Storage:
Premium Acrylic Finish (PAF) PW shall be kept indoors or if stored outdoors, shall be adequately covered to keep dry and be stored off the ground.

​

Applicable Standards, Specifications and Codes:

• 2024 International Building Code (IBC)

• 2024 International Residential Code (IRC)

​

Product Properties:

• Drying Time – Drying of the finish is dependent on the air temperature, relative humidity, and coating thickness.  Under average drying conditions [21 °C (70°F), 55% R.H.], protect work from rain for at least 24 hours. 

• Surface Burning:

• (ASTM E-84) – Pass. < 25 Flame Spread. < 450 Smoke Developed.

• Water Vapor Transmission:

• (ASTM E-96) – Pass. 28 Days. 

• Accelerated Weathering:

• (ASTM G-154) – Pass. Weatherometer, Test Method 1, BH apparatus for 2000 hrs exposure.

• Freeze-Thaw Resistance:

• (ASTM-2485) – Pass. 60 Cycles. No deleterious effects.

• Mildew Resistance:

• (ASTM D-3273) – Pass. No growth @ 28 Days.

• Salt Spray Resistance:

• (ASTM B-117) – Pass. 300  hours exposure. No deleterious effects.

• Water Resistance:

• (ASTM D -2247) – Pass. 14 Days. No deleterious effects.

• Abrasion Resistance:

• (ASTM  D-698) – 528 Qts. Sand. No cracking, checking, or loss of film integrity @ 528 Qts.

​

Conditions of Use and Limited Warranty:

Specifications for this product are based on optimal environmental conditions (70°F ambient temperature with 50% humidity) for preparation, mixing, application and curing. Specification parameters may vary as environmental conditions change. Consult the product’s Safety Data Sheet or GHS Section located on the product package for hazard identification and first aid measures. KEEP OUT OF REACH OF CHILDREN.

​

Western Blended Products (WBP) warrants that its products are of merchantable quality and suitable for the general purpose for which they are intended when applied in accordance with WBP instructions. The manufacturers of WBP products do not warrant the products to be suitable for any purpose or use other than that for which they are intended. Liability under this warranty is limited to supplying new material without charge or, at the option of the manufacturer of the WBP product, refunding the purchase price. In the event of a claim under this warranty, written notice must be provided to the originating plant of the WBP product at the address shown herein. This limited warranty is issued and accepted in lieu of all other express warranties and expressly excludes liability for consequential damages. Some states do not allow the exclusion or limitation of incidental or consequential damages, or limitations on how long an implied warranty lasts; therefore, the above limitations or exclusions may not apply.