CPM-Flex Pro™

Polymer-Modified CPM-Flex Pro ™ 920 Crack Prevention Mortar

PRODUCT DESCRIPTION When setting glass tile over 6" x 6" CERAMIC TILE SUBSTRATES, CPM- FLEX PRO™ 920 is formulated for superior (15 x 15 cm) or when setting dimensional RESILIENT FLOORING OR flexibility and bond strength for the most stone larger than 12" x 12" (30 x 30 cm), PLASTIC LAMINATES demanding tile installation requirements. contact Technical Services for recommendations Plywood floors must be built to industry CPM- FLEX PRO 920 uses a blend of polymers regarding subfloor deflection requirements. standards. Resilient flooring or plastic and inorganic chemicals to increase the APPLICABLE STANDARDS laminates must be well bonded, clean and contact between the mortar and tile for Conforms to requirements for latex-Portland free of all contaminates. Roughen the surface excellent bonds on a wide variety of new and cement mortars found in ANSI A118.4 and by sanding or scarifying, rinse and allow to remodeling substrates. Extended open and A118.11. dry. Do not sand flooring containing asbestos. adjustment times and a creamy consistency PACKAGING For existing well-bonded ceramic tile, provide excellent handling characteristics. 50 lb. (22.7 kg) multi-wall bags. mechanically abrade with carborundum stone. It offers up to 20% more coverage than Rinse and allow to dry. When sanding we other thin-sets. Isolates cracks up to 1/8" recommend the use of an approved respirator. C

(3.2 mm). Exceeds ANSI A118.4 and A118.11 P INSTALLATION MOVEMENT JOINTS without the need for additives. PREPARATORY WORK Expansion joints, control joints and cold M DIRECTIONS Detailed installation procedures may be found joints should never be bridged with setting in the T.C.A. Handbook and ANSI A108.5. material. They must be brought through the - BASIC USE F Surfaces must be structurally sound, clean, tile work and filled with an appropriate CPM-Flex Pro 920 is used as a bond coat l for setting absorptive, semi-vitreous, dry and free from grease, oil, dirt, curing elastomeric sealant. e compounds, sealers, adhesives or any other vitreous and impervious ceramic tiles such MIXING x contaminant that would prevent a good as porcelain and natural stone for service Thoroughly mix approximately 6 quarts

bond. Glossy or painted surfaces must be P in residential and commercial use. It is (4.73 L) clean, cool water and 50 lb. sanded, stripped and cleaned of waxes, dirt used in a mortar bed from 3/32" to 3/16" (22.68 kg) of CPM-Flex Pro 920 together to r

or any contaminants. Ambient temperature, o (2.4 to 4.8 mm) after the tiles have been a smooth, paste consistency. Mix by hand or surfaces and materials should be maintained properly embedded. CPM-Flex Pro 920 has use a low speed (150 - 200 RPM) 1/2" (13 mm) ™ at a temperature above 50° F (10° C) or excellent water and impact resistance, is drill. Let slake or stand 5 - 10 minutes, stir below 100° F (38° C) for 72 hours. 9 water cleanable, nonflammable, good for again and use. Stir occasionally to keep exterior work and requires no presoaking of CEMENTITIOUS SUBSTRATES fluffy, but do not add more water. When 2 tiles. CPM-Flex Pro 920 mortar is not affected Concrete or plaster must be fully cured and properly mixed, troweled ridges will stand 0 by prolonged contact with water, but does accept water penetration. Test by sprinkling with no slump. not form a waterproof barrier. CPM-Flex Pro water on various areas of the substrate. If APPLICATION 920 provides a permanent installation with water penetrates, then a good bond can be INSTALLATION TO CONFORM TO ANSI A108.5. higher bond and flexural strength and lower achieved. If water beads, surface contami - Use a properly-sized notched trowel to ensure material and labor costs over conventional nants are present and loss of adhesion may 100% coverage under tiles. Using flat side Portland cement mortar beds. occur. The contaminants should be removed of trowel, apply skim coat of mortar to the before installation. Concrete must be free of AREAS OF USE surface. Apply additional mortar with notched efflorescence and not subject to hydrostatic CPM-Flex Pro 920 is formulated to bond side of trowel held at a 45° angle to the pressure. Concrete slabs should have a vitreous, semi-vitreous or absorptive tile surface, combing in one direction. Press tile broomed or brushed finish to enhance the including ceramic, mosaic, quarry, porcelain firmly into place in a perpendicular motion bond. Smooth concrete slabs must be rough - and glass tile, cement-based precast terrazzo, across ridges, moving back and forth. ened to ensure a good bond. brick, mini-brick and gauged natural stone Perpendicular pressing flattens ridges and tile. For interior or exterior floors, walls or NON-CEMENTITIOUS SUBSTRATES closes valleys allowing maximum coverage. countertops. Apply over concrete, mortar Surfaces such as old plaster and painted With some tiles, back-buttering is advisable. beds, masonry, cement backerboards, surfaces that provide bonding problems Adjust tile promptly and beat in with a Portland cement plaster, drywall (dry areas), should be covered with a 3/8" to 3/4" beating block and rubber mallet. Periodically existing ceramic tile, Exterior Grade Plywood (9.5 to 19 mm) reinforced mortar bed for pull up a tile and check the back to ensure (interior dry areas), sheet vinyl flooring, walls and a 1 1/4" (32 mm) reinforced complete coverage with the adhesive. Do not VCT, plastic laminates or cutback adhesive mortar bed for floors. After a minimum of spread more material than can be tiled in (see preparation instructions). 20 hours, the dry-set mortar may be applied 15 minutes or while material has wet tack LIMITATIONS to the mortar bed. (sticky to the touch). If material has skinned CPM-Flex Pro 920 must not be applied directly PLYWOOD SUBSTRATES over (not sticky), recomb with notched to hardwood, Luan plywood, particle board, Plywood flooring including those under trowel. If too dry, remove and replace with parquet, cushion or sponge-back vinyl flooring, resilient flooring must be structurally fresh material. Material in bucket will remain metal, fiberglass, plastic or OSB panels. sound and meet all ANSI and deflection workable approximately 4 hours. Not for controlling vertical movement cracks. requirements. For questions about proper CLEANING Do not use to install resin-backed stone. subfloor installation, call Technical Services. Clean with water before material dries.

09305 CURING ™ Allow to dry for at least 24 hours before grout - CPM-Flex Pro 920 ing or light traffic depending upon temperature and humidity. Crack Prevention Mortar WARRANTY CPM-Flex Pro 920 is included in C-Cure’s Five Year System Warranty. For terms and CPM FLEX PRO 920 TECHNICAL DATA conditions see Warranty Document #WRTDS. TEST REQUIREMENT TYPICAL VALUES *A. Open Time @ 70°F (21°C) > 60 Minutes *B. Adjustability @ 70°F (21°C) 60 Minutes *C. Bucket Life @ 70°F (21°C) 4 Hours *D. Compressive Strength ASTM C-109 28 Days >3000 psi (211 kg/cm 2) *E. Shear Bond ANSI A118.4 and A118.11 Bisque Tile 7 Days >300 psi (21 kg/cm 2) 400 psi (28 kg/cm 2) 28 Days >300 psi (21 kg/cm 2) 700 psi (49 kg/cm 2) Porcelain Tile 7 Days >100 psi (7 kg/cm 2) 250 psi (18 kg/cm 2) 28 Days >150 psi (11 kg/cm 2) 650 psi (44 kg/cm 2) Quarry Tile to Plywood 7 Days >100 psi (7 kg/cm 2) 250 psi (13 kg/cm 2) 28 Days >150 psi (11 kg/cm 2) 350 psi (25 kg/cm 2) *F. Safety—CAUTION: Contains Portland cement and free silica. May be irritating to eyes and nose. Prolonged exposure to dust may cause delayed lung disease (silicosis), and there is limited evidence that crystalline silica may cause cancer in humans. Eliminate exposure to dust. Follow OSHA standards for crystalline silica. Remove to fresh air if exposed. Avoid contact with skin and eyes. Wash thoroughly with water after handling. In case of eye contact, flush immediately and repeatedly with water. If irritation persists, consult a physician immediately. Do not take internally. NIOSH approved mask for silica dust, eye protection, and gloves are recommended when handling this product. *KEEP OUT OF REACH OF CHILDREN *G. Storage Life—One year if kept dry in sealed bag.

*These values reflect the results of practical testing methods closely associated with applications in the field.

COVERAGE PRODUCT SQUARE FEET (M 2) PER 50 LB. (22.7 KG) BAG 1/4" x 1/4" x 1/4" 1/4" x 3/8" x 1/4" 1/2" x 1/2" x 1/2" (6 x 6 x 6 mm) (6 x 9.5 x 6 mm) (13 x 13 x 13 mm) Square-Notch Trowel Square-Notch Trowel Square-Notch Trowel CPM-Flex Pro 920 100 – 110 (9.3 – 10.2) 70 – 77 (6.5 – 7.2) 40 – 44 (3.7 – 4.1)

GUARANTEE The recommendations, suggestions, statements and technical data are based on the best knowledge available to C-Cure and are given for informational purposes ONLY and without any responsibility for their use. C-Cure MAKES NO WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE WITH RESPECT TO THE PRODUCT SOLD HEREIN except that the quality of the ingredients shall be in accordance with C-Cure specifications. It is expressly understood and agreed that the buyer's sole and exclusive remedy shall be replacement of defective products and under no circumstances shall C-Cure be liable for incidental or consequential damages. C-Cure neither assumes nor authorizes any others to assume for it any liability with respect to furnishing of the product. Handling and use of the product are beyond the control of C-Cure, therefore, no warranty is made, expressed or implied, as to the results obtained from the use of the product or against any claims for infringement of patents resulting from the use of the product. This writing constitutes a complete and exclusive statement of the understanding between C-Cure and buyer. There were no oral agreements or warranties, expressed or implied, collateral to or affecting the furnishing of the product. This understanding shall not be modified except in writing by an officer of C-Cure. Members of National Tile Contractors Association, Materials & Methods Standards Association, Ceramic Tile Distributors Association. NOTICE: The information in this bulletin is presented in good faith, but no warranty, express or implied, is given nor is freedom from any patent. In as much as any assistance furnished by C-Cure with reference to the safe use and disposal of its products is provided without charge, C-Cure assumes no obligation or liability therefore, except to the extent that any such assistance shall be given in good faith. C-CURE Seal Beach, CA 90740 800-895-2874 www.c-cure.com