MEADOWS SEALMASTIC EMULSION TYPE II BRUSH SPRAY GRADE 5 GAL
SEALMASTIC emulsion-type dampproofing coatings are ideal for reducing dampness and moisture infiltration through foundation walls, parapets, firewalls, tanks, culverts, cisterns, and bridge abutments. They are also applicable for stone-backing, above-grade cavity wall use, and below-grade masonry wall dampproofing. The SEALMASTIC product line also helps to minimize internal structural damage from mildew and mold and is compatible with ICF foam forms.
SEALMASTIC TYPE I (spray-grade) is an asphalt-based, non-fibered, clay emulsion. Under normal use, it resists flow or sag. Its greater water resistance is ideal where use of spray is desired. It�s an asphalt-based, clay emulsion with fibers specifically formulated to offer a tight film that combines both excellent strength and resistance to water. SEALMASTIC TYPE III (trowel-on grade) is a trowel-applied mineral colloid, asphalt emulsion, fibrated with selected fibers and produced in an ideal, light trowel consistency. SEALMASTIC TYPE III offers high weather, water, corrosion, and abrasion resistance. It can be used as an adhesive on foam board installations. SEALMASTIC TYPE I and SEALMASTIC TYPE II should be thoroughly stirred in their respective containers before applying it. SEALMASTIC TYPE III can be applied directly from the container. Exterior Below-Grade Dense Surfaces … Apply SEALMASTIC TYPE II by soft bristle brush or suitable spray equipment or SEALMASTIC TYPE III by trowel. Consult the spray equipment manufacturer for instructions. It should be applied to properly prepared surfaces in a continuous, unbroken film (free of pinholes), filling and spreading around all joints, slots, and grooves and penetrating all crevices, chases, reveals, soffits, and corners. Carry coating over the exposed footing’s top and outside edge, up to finished grade.
Leed Information: May help contribute to LEED credits: IEQ Credit 3.1: Construction Indoor Air Quality Management Plan – During Construction, IEQ Credit 4.2: Low-Emitting Materials – Paints and Coatings, MR Credit 2: Construction Waste Management, and MR Credit 5: Regional Materials.
Precautions: Keep from freezing in the original container. Not intended as a waterproofing membrane. (Refer to MEL-ROL or MEL-ROL LM from W. R. MEADOWS.) Read and follow the information and precautions for applying. Refer to Safety Data Sheet for complete health and safety information.
Cleanup … While still wet, material may be removed with soap and water. Once dried, the material can be removed with kerosene or petroleum naptha. Solvent manufacturer precautions should be adhered to when using a solvent for cleanup.
Surface Preparation … All surfaces to be coated must be thoroughly cleaned of all scale, loose mortar, dust, rust, dirt, oil, grease, and other foreign matter. Use a wire brush, sandblast, or other methods in keeping with good construction practices. Before applying, fill voids, cracks, and holes in concrete with cement mortar and allow it to dry. If primer is required, use SEALMASTIC SPRAY-MASTIC™ from W. R. MEADOWS. Do not apply when temperatures below 35° F are anticipated. Do not apply in rain or when rain is threatening.
Application: Exterior Below-Grade Porous Surfaces (Three Options): Membrane System … For severe conditions or added protection, apply one coat of SEALMASTIC TYPE II or SEALMASTIC TYPE III. Within four hours, apply REINFORCING FABRIC HCR from W. R. MEADOWS overall coating surfaces. Overlap all edges 3″ minimum. Press firmly into place without wrinkles. Apply the second coat of SEALMASTIC TYPE II or SEALMASTIC TYPE III should be within 24 hours. Two-Coat System … If a prime-coat is needed, dilute MEL-ROL® LM from W. R. MEADOWS four parts water to one part MEL-ROL LM or apply a diluted coat of SEALMASTIC emulsion product one to one. Allow the coat to dry tacky to the touch and then apply SEALMASTIC TYPE III in one coat, as described above. Parge-Coat System … Before applying SEALMASTIC, a parge-coat of cement mortar should be applied to the block wall. This coat should cover the bottom of the footings to grade level, forming a cove at the junction of the wall and footing. Once the parge-coat cures, apply one trowel coat of SEALMASTIC TYPE III or two spray- or brush coats of SEALMASTIC TYPE II as described above. Backfilling … Backfilling should be done within 24 – 48 hours after applying it. No longer than seven days maximum should elapse. Be careful not to damage or rupture the film or displace coating or membranes. To assure maximum protection, PROTECTION COURSE and MEL-DRAIN™ from W. R. MEADOWS should be used. Prolonged exposure to ultraviolet light should be minimized. Interior Above-Grade Surfaces – Vapor Retarder … SEALMASTIC TYPE I, SEALMASTIC TYPE II, and SEALMASTIC TYPE III can be used individually or in combination for dampproofing the exterior face of interior walls in cavity wall construction.