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Paint Base Exterior Stucco Finish

A color controlled, factory sanded portland cement exterior finish for paint applications.

Product Information

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Available Textures (Click on Colors & Textures for a better look!)

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Paint Base Exterior Stucco Finish is a blend of color controlled portland cements, lime, and clean graded aggregates.  The product is designed to provide a stucco texture for projects specified for application of paint or elastomeric finishes.


This product is packaged in 90lb / 40.82 kg bags.



  • A cost effective, low maintenance coating for all portland cement substrates. 

  • Provides a variety of colors and textures.

  • An integral part of a conventional plaster one-hour fire assembly.


Sand Blends:

  • Coarse (16/20): Used for a heavy skip trowel, sand or dash finishes.  Coarse sands add greater depth and shadowing to stucco textures.

  • Medium (20): Used for medium skip troweled textures, lighter,  and sand finishes southwestern textures.

  • Fine (20/30): Used for Used for a less noticeable aggregated finish. 

  • Dash: A specialty blend of Fine and Heavy aggregates.  

  • Spanish: Used for a coarser aggregate textured look


Coverage will vary due to sand blend and desired texture. Use the following coverage estimates based on our medium aggregate and 90 lb bag as a general guideline.

  • Fine Finish – Approx. 12 square yards.

  • Sand Float – Approx. 10 square yards.

  • Skip trowel – Approx. 10 square yards.

  • Machine Dash – Approx. 8 square yards.


Paint Base Exterior Stucco Finish is mixed with clean water in a mechanical mixer for ten to twelve minutes.  Two to three gallons of water are added until the mix is at a working consistency.  Amount of water may vary due to weather conditions and desired texture.  The contractor shall be consistent from batch to batch with the quantities of water.


Paint Base Exterior Stucco Finish shall be applied by hand or machine application to a finished thickness of 1/16 to 1/8 inch.
1. Hand Application over portland cement base- Prior to application of Exterior Stucco Finish, the base coat shall be sprayed with clean water to control and equalize water absorption.

2. Machine Application over portland cement base - Base coat shall be dry. (It is not necessary to spray the base coat before application of Exterior Stucco Finish by machine, as the compound itself has ample moisture when mixed for this purpose.) Spray the first coat in a thin consistency over the dry surface and cover base coat completely. After the first coat has dried, which may take two or more hours depending on climatic conditions, spray second coat in a thicker consistency and bring to the desired texture. The second coat may be sprayed the following day.



Paint Base Exterior Stucco Finish requires moist curing in hot, dry or windy conditions. Cementitious base coats and finishes are normally high pH surfaces. Paint Base Exterior Stucco should be completely cured allowing the pH level to neutralize (below 8) prior to painting. This may occur in about two weeks, although it is recommended for the stucco to be fully cured, which normally occurs after 28 days of application. When exterior paint coatings are applied, ensure the surface pH level is neutral prior to application and follow the paint manufacturers' recommendations for pH compatibility and installation guidelines.


Do not apply when surface or ambient temperatures are at or below 40ºF / 4.4ºC or above 100ºF / 34ºC. 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 Western Exterior Stucco Finish if conditions are expected to be above or below the specified temperature range within 24 hours of application. Do not add additional ingredients to Paint Base Exterior Stucco Finish without specific written approval from an authorized manufacturer of Western Blended Products.


Paint Base Exterior Stucco Finish 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:

Portland Cement:  ASTM C150-93

Portland Cement-Based Plaster: ASTM C926
Federal Specification SS-C-1960/3
Lime:  ASTM C207-92


Manufacturers or Western Blended Products (WBP) warrants its products to be of merchantable quality and suitable for the general purpose for which they were intended, when applied in accordance with WBP instructions.  Manufacturers of WBP do not warrant its products to be suitable for any purpose or use other than for which they were intended.  Liability under this warranty is limited to supplying new material without charge, or at manufacturers of WBP option, to a refund of the purchase price.  In the event of a claim under this warranty, written notice must be given to the originating plant of the WBP goods at the address shown hereon.  This limited warranty is issued and accepted in lieu of all other expressed 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, so the above limitations and exclusions may not apply to you.  This warranty gives you specific legal rights, and you may also have other rights that vary from state to state.

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