ELASTA-TUFF BG-3000 - Base Coat
ELASTA-TUFF BG-3000 is a single component, moisture-cured, liquid applied, polyurethane waterproofing membrane. It is supplied in a Roller Grade (Type II) consistency which is suitable for vertical surfaces as well as the horizontal portions of planter boxes. The cured membrane meets the performance requirements of ASTM Specification C-836-84. For larger horizontal surface areas use ELASTA-TUFF BG-3000-H20 (Type I)General Information
Basic Uses: ELASTA-TUFF BG-3000 provides a seamless, continuous waterproofing membrane that remains flexible over a broad temperature range. ELASTA-TUFF BG-3000 may be applied onto vertical or sloping surfaces, providing positive between slab or below grade waterproofing. The excellent adhesion properties inhibit lateral water migration between the membrane and the substrate. The toughness and flexibility of ELASTA-TUFF BG-3000 enables the membrane to bridge hairline shrinkage cracks in concrete. Suggested areas of application are as follows:
Waterproofing foundations or exterior basement walls, or other structures that are to be backfilled.
Waterproofing under laundry and bathroom floor slabs.
Waterproofing under shower pans with separate mortar bed.
Waterproofing inside planter boxes and planter berm walls.
Waterproofing under tile or terrazzo floors with separate mortar bed.
ELASTA-TUFF BG-3000 cures faster when applied during warm weather and high humidity conditions and slower when applied during cooler weather and low humidity conditions.
Limitations: Not designed for use as a finished, exposed-membrane traffic surface. Do not apply over any type of lightweight concrete without prior written approval. Wherever metal decking is used as the concrete form, it must be ventilated. Most concrete compositions or methods of Below-Grade construction will require the use of TUFF-POXY #2 or #3 solvent based epoxy primers or TUFF-TAPE “PW” Polyester Reinforcing Mat.
Shelf Life: Nine (9) months after manufacture when continuously stored indoors in unopened metal pails at temperatures under 80°F. Liquid membrane is moisture reactive so containers that have been opened must be used within a few days. Product Installation
Surface Preparation: All surfaces to be coated must be thoroughly cleaned and dried. Apply TUFF-POXY #2 or #3 Epoxy Primer in those installations where recommended. All cracks over 1/16 inch in width must be routed-out and filled flush with a polyurethane sealant and detailed with a 30 mil prepatory stripe coat of ELASTA-TUFF BG-3000. Install all required neoprene or polyester flashing reinforcement and sealant cants. It is recommended that large-pour slabs of new concrete be cured at least 28 days prior to application. All voids or excessively rough areas in poured concrete and all masonry or block surfaces should be parged or grouted smooth with an approved cementitious grout.
Detail Work: Install all required sealant cants, polyester flashing reinforcement and any needed primers. At intersections of horizontal membrane to vertical membrane or to vertical walls, columns, pipes or other penetrations, install a 3/4” cant bead of polyurethane sealant at the meeting angle.
Application: ELASTA-TUFF BG-3000 may be applied by heavy duty roller, trowel or heavy duty squeegee. It is recommended to apply in two or three coats, at a rate of 40 sq. ft. per gallon per coat, in order to obtain a uniform composite dry film thickness of either 60 mils or 90 mils. A minimum of 16-24 hours curing time should be allowed between coats. Below grade and between slab applications typically require the use of TUFFLEX approved Protection Board or TUFFLEX “EZE-DRAIN” Geotextile Drainage Composite. Certain installations will require the continuous use of TUFF-TAPE “PW” Polyester Reinforcing Mat.Maintenance
If ELASTA-TUFF BG-3000 is damaged, it can be repaired by abrading the surface, lightly wipe the surface with acetone or xylene and recoating it with the ELASTA-TUFF BG-3000 coating.Warnings & Hazards
Personnel applying these coatings should wear protective clothing, use respiratory protection, safety goggles and gloves. Avoid contact of material with skin or eyes and avoid breathing vapors. Mix and apply in well-ventilated areas and observe normal safety precautions required for solvent containing polyurethane and epoxy materials. Read the MSDS sheets before using this product. THIS PRODUCT IS FOR PROFESSIONAL USE ONLY Limited Warranty
TUFFLEX POLYMERS (TUFFLEX) warrants this product to be free of defects in workmanship and materials only at the time of shipment from our factory. If any TUFFLEX materials prove to contain manufacturing defects that substantially affect their performance, TUFFLEX will, at its option, replace the materials or refund its purchase price.
This limited warranty is the only warranty extended by TUFFLEX with respect to its materials. There are no other warranties, including the implied warranties of merchantability and fitness for a particular purpose. TUFFLEX specifically disclaims liability for any incidental, consequential, or other damages, including but not limited to, loss of profits or damages to a structure or its contents, arising under any theory of law whatsoever.
The dollar value of TUFFLEX’S liability and buyer’s remedy under his limited warranty shall not exceed the purchase price of the TUFFLEX material in question.