Knowde Enhanced TDS
Identification & Functionality
- Chemical Family
- Technologies
- Product Families
Features & Benefits
- Labeling Claims
- Ready-to-Use Product Features
- Benefits
- Innovative solvent-free, 100%polyurethane technology.
- Long Life Cycle - Over 45 years of successful applications.
- Single Application - Apply with squeegee, trowel, spray or brush.
Applications & Uses
- Markets
- Recommended Uses
Intended primarily for use as a high build waterproofing membrane over concrete, metal and plywood. This grade of LM-60 can be used in areas with a pH ≥ 4.
- Applied Coverage
- Mil ft² per Gallon: 1600
- Applied Coverage: 4 Gals./100 ft². to yield 1/16" thickness.
- Application
Primer
- Metals - GacoFlex E-5320
- Plywood - GacoFlex E-5691
- Galvanized - Steel GacoFlex E-5320
- Concrete - GacoFlex E-5691
Mixing Instructions
Stir the polyol side (Part A) to suspend any settled pigment. Completely empty the iso (Part B) container into the polyol side (Part A) and power mix for five minutes, scraping the pail side several times. Use a power mixer that will thoroughly agitate the mix (electric or compressed air powered). A Jiffy Mixer PS21 has been found to work well with LM-60HAR or LM-60VAR. Combine fifteen volumes of polyol (Part A) with one volume of iso (Part B) for quantities less than four gallons. Power mixing is mandatory for quantities over two gallons. Extreme care is required to mix in materials on the side and bottom of the mixing container.
Pot Life
One hour at 70 to 80°F. Can be extended to three hours by thinning with T-5112 (up to 10%).
Application
- For best results, prime concrete surfaces with E-5691. Use a 5/16" x 5/16" V notched trowel or notched squeegee for application to 60 mil (1.52 mm) thickness. LM-60HAR is self-leveling on horizontal surfaces. LM-60VAR must be flat troweled to a smooth finish since it will not self-level. Contact Gaco for spray application information. Refer to specification for protection course or covering requirements. Use caution when backfilling or covering to avoid damage to the polyurethane membrane.
- WARNING – LM-60AR in direct contact with aged or new SBS and EPDM sheet membranes could cause their swelling and deterioration through time due to the strong solvency of the process oil in LM-60AR.
Properties
- Typical Properties
- Product Data
Property Value Consistency LM-60HAR & LM-60VAR are thixotropic. LM-60HAR ranges between 25,000 to 40,000 centipoises at 75°F. LM-60VAR ranges between 100,000 to 160,000 centipoises at 75°F. Weatherability GacoFlex LM-60AR has excellent durability up to 150°F. LM-60AR must be top coated. LM-60AR will crack and become brittle in exterior applications if not protected. Chemical Resistance Excellent resistance to water immersion, good salt and alkali resistance. Excellent hydrolytic stability up to 150°F. - Packaged Product Data
Property Value Toxicity GacoFlex LM-60AR Part B is an isocyanate prepolymer. When mixed with the polyol side (Part A) use adequate ventilation, avoid breathing vapors or spray mist and prolonged or repeated contact with skin. When spraying use a particulate matter mask, an approved organic matter cartridge respirator or a fresh air mask. Adhesion Excellent adhesion to clean, dry, plywood and concrete. Primers may be required for other surfaces. See below for specific primer.
| Value | Units | Test Method / Conditions | |
| Tensile Strength | 165 - 185 | psi | ASTM D412 |
| Tensile Elongation | 280 - 320 | % | ASTM D412 |
| Tensile Permanent Set at Break | max. 10 | % | ASTM D412 |
| Hardness (70°F) | 30.0 | Shore A | ASTM D2240 |
| Adhesion (Peel Strength) | 11.0 | bf/inch | ASTM C836 |
| Tear Resistance (Die C) | 30.0 | lb/inch.min | ASTM D624 |
| Water Absorption (21 day R.T.) | max. 1 | % | ASTM D471 |
| Water Vapor Permeability (100 RH Difference, Procedure BW) | 0.012 | perm inches | ASTM E96 |
| Low Temperature Brittleness (-50°F) | Pass | — | ASTM D746 |
| Solids (By Volume) | 100.0 | % | — |
| Flash Point | min. 200 | °F | ASTM D56 (Closed Cup) |
Regulatory & Compliance
- Certification
Product certified for Low chemical emissions UlCOM/GC Ul 2818.
Storage & Handling
- Storage Stability
12 months at 50°F to 80°F.