Base Coats / Primers
"PRM" - Polymer Reinforced Mortar Dry-Mix
PRM Product Data SheetDescription
PRM is a powdered polymer reinforced adhesive and underlayment for use with acrylic finish coatings. PRM provides a strong bonding surface on several different types of foam as well as concrete substrates.
Use
PRM is used as a base coat, leveling and reinforcement for the Waterway Drainable Stucco assembly, EIFS and direct-applied systems, as well as an adhesive for some foam system applications.
Application
PRM is usually applied with stainless steel masonry trowels at a nominal 1/16 -1/8 inch. It can also be spray applied with proper equipment onto the substrate, then troweled to smooth out the surface. Over approved foam substrates and the Waterway Drainable Stucco Assembly, PRM should be used in conjunction with fiberglass reinforcing mesh.
Adhesive Applications
Apply to the backside of approved insulation board with a 3/8 inch notched trowel. Apply ribbons over the entire surface running parallel to the short dimension of the insulation. Immediately adhere insulation to properly prepared substrate using firm pressure across the entire surface making positive contact. Place the board on the substrate about 2-3 inches from desired finished location and slide into place to ensure positive contact. Stagger all seams and joints, avoid gaps in foam surface.
Base Coat Applications
Apply with stainless steel masonry trowels at a nominal 1/8 inch. PRM can also be spray applied with proper equipment, then troweled to smooth out the surface. Immediately embed Fiberglass Reinforcing Mesh into wet base coat, troweling from the center to the edges. Overlap mesh 2 inches on all ends and edges. Avoid wrinkles and smooth out wet base coat to a minimum 1/16 inch thickness over mesh such that no mesh pattern is visible. Apply an additional layer of base coat if needed to achieve minimum thickness and provide a smooth surface prior to finish coat applications.
Light sanding of the PRM is acceptable to achieve a level substrate for the finish coat; usually this is best performed the day after initial application.
Skim Coat Applications
Apply mixed PRM in an adequate thickness to smooth and flush out imperfections in the substrate below. Allow to dry completely (24 hours minimum) prior to Stuc-O-Flex Finish Coat application.
"Stuc-O-Base" - Base Coat Concentrate Wet-Mix
Stuc-O-Base Product Data SheetDescription
Stuc-O-Base is a wet-mix concentrate that when mixed 1:1 by weight with Portland Cement is used as an excellent adhesive and underlayment for use with acrylic finish coatings. Stuc-O-Base uses a high quality acrylic polymer that provides a strong bonding surface on several different types of foam as well as concrete substrates, creating a strong level platform for finish coat applications.
Mixing
Stuc-O-Base should be mixed 1:1 by weight (equal parts) with fresh, dry Portland Cement type I or II. Product should be allowed to sit for 10 minutes, then remixed & used immediately. Avoid retempering after mixing the Stuc-O-Base.
Application
Stuc-O-Base is usually applied with stainless steel masonry trowels at a nominal 1/16 -1/8 inch. It can also be spray applied with proper equipment onto the substrate, then troweled to smooth out the surface. Over approved foam substrates and the Waterway Drainable Stucco Assembly, Stuc-O-Base should be used in conjunction with fiberglass reinforcing mesh.
Adhesive Applications
Apply to the backside of approved insulation board with a 3/8 inch notched trowel. Apply ribbons over the entire surface running parallel to the short dimension of the insulation. Immediately adhere insulation to properly prepared substrate using firm pressure across the entire surface making positive contact. Place the board on the substrate about 2-3 inches from desired finished location and slide into place to ensure positive contact. Stagger all seams and joints, avoid gaps in foam surface.
Base Coat Applications
Apply with stainless steel masonry trowels at a nominal 1/8 inch. Stuc-O-Base can also be spray applied with proper equipment, then troweled to smooth out the surface. Immediately embed Fiberglass Reinforcing Mesh into wet base coat, troweling from the center to the edges. Overlap mesh 2 inches on all ends and edges. Avoid wrinkles and smooth out wet base coat to a minimum 1/16 inch thickness over mesh such that no mesh pattern is visible. Apply an additional layer of base coat if needed to achieve minimum thickness and provide a smooth surface prior to finish coat applications.
Light sanding of the Stuc-O-Base is acceptable to achieve a level substrate for the finish coat; usually this is best performed the day after initial application.
Skim Coat Applications
Apply mixed Stuc-O-Base in an adequate thickness to smooth and flush out imperfections in the substrate below. Allow to dry completely (24 hours minimum) prior to Stuc-O-Flex Finish Coat application.
Primeseal Stain Blocking Primer
Primeseal Product Data SheetDescription
Primeseal is a specialized primer / sealer designed to block staining and bleed-through caused by tannic acid, sheathing laminates and other substrate contaminates. Primeseal is also an excellent sealer for traditional cement stucco ensuring a uniform porosity and to retarding moisture or vapor penetration.
Use
Primeseal is applied to various substrates including polymer modified base-coat prior to Stuc-O-Flex finish applications. Offers uniform porosity of the substrate and extends working time of the finish coat, enhances uniformity in finished appearance.
Surface Preparation
Substrate must be clean, dry, above freezing and free from all loose or foreign materials prior to application, including rust, mildew, dust, dirt, form breaker and oils. Remove all loose surface materials using high pressure wash (>3000 psi), sandblast or mechanical wire brush.
Application
Primeseal may be applied by brush, roller, or spray equipment. Screen prior to spray application. Apply Primeseal to a uniform thickness free of pin-holes and voids.