Wet Stucco Base Coat Adhesive

Portland Cement Based Wet Stucco Base Coat Adhesive

Wet Stucco Base Coat is a 100% acrylic co-polymer based material. It is mixed at the time of use with Portland Cement. Wet Stucco Base Coat is used as a base to embed mesh in our Systems. Its also used as a leveling coat for masonry surfaces.  Wet Stucco Base Coat may be used as an adhesive for foam on non wood foam applications per specifications.

 New to stucco? you can find some basic (how to) videos here.

Packaging

5 gallon pail. 60 lbs.

Coverage

1. As an adhesive using a notched trowel to adhere (EPS) board to substrates it renders (140-160 sq/ft) per pail. For non wood frame applications. 2. As a base coat for embedding of  Mesh it gets 140-280 sq/ft per pail 3. As a leveling coat coverage depends upon the thickness applied. Note: Coverages may vary depending upon job conditions.

Storage

Store Wet Stucco Base Coat in its original containers at temps not less than 40º F or greater than 110º F. Store out of direct sunlight. Do not stack more than 3 pails high. Keep Portland Cement dry.

Shelf Life

About 2 years if properly stored. Portland cement stays good for close to 2 years if stored properly.

Surface Preparation

For adhesive application the substrate must be free of residue and paint.  Masonry  substrates must be flat within 1/4” in 10 feet. Remove clogs of Portland Cement. For base coat application with EPS the insulation must be attached to the substrate. All gaps greater than 1/8” between EPS boards must be filled with EPS. Rasp the entire wall to a flat surface within 1/4” in 10 feet. Groove all  joints and EPS details after rasping. Painted substrates shall have 90% of the paint removed.

Approved Substrates

As Base Coat with reinforcing mesh Wet Stucco Base Coat may be applied over Cement Board and EPS. As an Adhesive Wet Stucco Base Coat may be used to bond EPS to concrete block, gypsum sheathing and cement board. DO NOT use over wood or painted surfaces.

Mixing with Portland Cement

Use a clean 5 gallon pail.  Do not use a pail which has contained a petroleum based product. 1. Open Wet Stucco Base Coat and mix with well. 2. Pour half the mixture into another clean 5 gallon pail. 3. Add 1/2 Gallon potable water. Add 30LB  Type I Portland Cement & Type II Portland Cement (ASTM C-150) to mixture. Mix with a 1/2” drill at 400- 500 RPM and a Jiffler mixer. 4. Add a little more clean water or Portland Cement if needed to get a smooth texture. 5. Let material rest for 10 minutes to allow the portland cement to fully take water. Then remix adding more clean water or Portland Cement if needed to adjust workability. Note: Do not exceed a 1:1 ratio (by weight) of portland cement to Wet Stucco Base Coat. Excessive amounts of Portland Cement will reduce the strength of the product. It also may cause cracking or efflorescence. Note: Overmixing will cause faster set time with portland cement. No other additives or materials of any kind shall be added.

Working Time

Pot life is about 1 hour after water and Portland Cement has been added. Use within one hour of mixing.

Curing

Bond strength for Wet Stucco Base Coat with Portland cement is achieved in one to four days. Full cure should occur after two weeks.

Application Directions

As an adhesive. Substrate shall be approved by Facades. Substrate shall be dry, clean and free of  residue or coatings. 1. Apply Wet Stucco Base Coat to the entire surface of EPS board using a steel notched trowel. 2. slide EPS into place. Apply pressure over entire surface of the board to ensure uniform bond. 3. Abut all joints tightly. Ensure overall flush level surface. Fill all gaps between EPS board with EPS. 4. Allow EPS to set 24 hours before adding the Wet Stucco Base Coat with Portland cement. Note: Apply EPS board horizontally staggering vertical joints and sheathing. As a basecoat. Apply Wet Stucco Base Coat  with a steel trowel to a uniform minimum thickness of 1/16”. Work in widths of Mesh. Immediately embed mesh into basecoat.

Precautions. Limitations.

Temps must be at least 40º F during application and initial drying period. Do not use on wet or damp surfaces. Don’t use in extremely cold temps. Keep product safe from the elements. Avoid application over irregular surfaces.

Cleanup

Clean tools after use with soapy water.

Warning

KEEP PAIL CLOSED WHEN NOT IN USE.  KEEP OUT OF REACH OF CHILDREN.  NOT FOR INTERNAL CONSUMPTION. FOR PROFESSIONAL USE ONLY. Facades assumes no liability expressed or implied as to design, engineering and workmanship of any project. This is the end of the tech info for this stucco eifs and plaster product page. Are you looking for EIFS Stucco or plaster products? Well you don’t have to look anymore. We have all the right products you need for any job big or small. We have base coats that are nice and creamy and wont dry up on you before you can put it on the wall. We have fiberglass mesh that is not to stiff to work with but yet makes great reinforcement. We have finish coats that sticks to the wall perfectly but at the same time is not glued to your float while your trying to get the job done. So you will be happy with all of our products! Be sure to check out our EIFS Stucco and plaster System pages to see how all our products come together to form a great system. Here are the products we are very proud to offer. Some pages that are related to this one and worth a read are some of our product pages.