Knowde Enhanced TDS
Identification & Functionality
- Chemical Family
- Product Type
- Technologies
- Product Families
- Generic Type
Novolac Epoxy
- Generic Type
Flexible Epoxy Coating
Features & Benefits
- Ready-to-Use Product Features
- Product Highlights
DURAPATCH bonds chemically and mechanically to the substrate. DURAPATCH can be sanded, tapped and machined. DURAPATCH has excellent bonding strength and is ideal for many residential and commercial repairs. The DURAPATCH Repair Kit comes complete with a resin pack (part A), a hardener pack (part B) and a trowel. Cut the corners of the resin and hardener and mix quickly, yet thoroughly on a non-porous surface and apply with the trowel.
- Product Features & Benefits
- All Purpose Quick Cure Epoxy Paste.
- Hardens in 5 - 15 minutes depending on ambient temperature (down to 38°F).
- Ideal for immediate field use repairs.
- Trowelable - ideal for vertical surface repairs.
- Self-priming - bonds chemically and mechanically to the substrate.
- Can be sanded, drilled, tapped and machined.
- 100% solids - No VOCs.
Applications & Uses
- Applications
- Application Method
- Compatible Substrates & Surfaces
- Primer
- Self-priming
- Recommended Uses
- Metal cooling tower pans.
- Emergency tank and pipe repairs.
- Electrical bushings Setting keyways and taper fits.
- Repair of metal, fiberglass, composite, PVC and similar plastic materials.
- Pool pump leaks, adhesive for tiles and bricks.
- Substrates & Surface Preparation
All - Surfaces must be clean, dry and free of contaminants.
Steel
- Immersion: SSPC-SP10 Near-White Metal Blast with angular profile of 3.0 - 4.0 mils.
- Non-immersion: SSPC-SP6 Commercial Blast with angular profile of 2.5 - 3.5 mils.
Weld Repair - Use a flame to sweat out oil from deeply impregnated surfaces. Stabilize cracks by drilling the extremities. Long cracks should be drilled, tapped and bolted every few inches. Vee-out all cracks using a file. Degrease using clean rags.
- Mixing & Thinning
Mixing - Thoroughly mix the two parts, supplied in pre-measured sachet packs, until no streaks are seen. Apply to surface rapidly, pressing hard to achieve maximum wetting, then proceed with thickness desired. Mix no more product than can be applied in 5 minutes. When rebuilding structures, use layers of reinforcing cloth and apply product as thick as the parent substrate.
Ratio - 2A:1B by volume, 2A:1B by weight
Multi-layers - If building layers or pipe wrapping with reinforcing cloth, apply the coating within the recoat window. If this is not possible, allow the compound to cure, then create a mechanical profile by grit blasting, grinding or power tool sanding the surface before coating.
- Application Equipment Guidelines
Application - Apply directly on to the prepared surface with the plastic applicator or spatula provided. Press down firmly to remove entrapped air, fill all cracks, and ensure maximum contact with the surface. Use reinforcement tape over holes and cracks. Fully machinable using conventional tools once cured.
Brush & Roller - Brush or roller can be used to smooth uncured surface with solvent if desired.
- Cleanup
Use MEK or Acetone. In case of spillage, absorb and dispose of in accordance with local, applicable regulations.
Properties
- Color
- Finish
- Satin
- Typical Properties
- Chemical Resistance
- Acetic Acid up to 10%
- Ammonium Hydroxide*
- Aromatic & Aliphatic Solvents
- Black Liquor
- Butyl Acetate
- Butyl Carbitol
- (Most) Chlorides
- Hydrogen Sulfide
- Isopropyl Alcohol
- Mineral Acids
- Nitric Acid up to 20%
- (Mild) Organic Acids
- (Most) Phosphates
- Phosphoric Acid
- Potassium Hydroxide*
- Sodium Hydroxide*
- (Most) Sulfides
- Sulfuric acid up to 50%
- Urea Solutions
- White Liquor
*Ambient temperature only
| Value | Units | Test Method / Conditions | |
| Barcol Hardness | 85.0 | psi | ASTM D785 |
| Chemical Resistant Service (68°F) | 3.0 | hours | — |
| Compressive Strength | 15693.0 | psi | ASTM D695 |
| Flexural Strength | 7000.0 | psi | ASTM D790 |
| Machining (68°F) | 30.0 | minutes | — |
| Mechanical Service (68°F) | 30.0 | minutes | — |
| Pot Life | 5.0 | minutes | — |
| Recoat Window (68°F) | 20.0 | minutes | — |
| Service Temperature (Dry Service) | 250.0 | °F | — |
| Service Temperature (Immersion) | 140.0 | °F | — |
| Service Temperature (Spill/Splash) | 212.0 | °F | — |
| Solids Content (By Volume) | 100.0 | % | — |
| Substrate Temperature (<90% relative humidity) | 50 - 140 | °F | — |
| Tensile Shear Adhesion | 2550.0 | psi | ASTM D1002 |
| Theoretical Coverage (125 mil) | 12.8 | ft2/gal | — |
| Theoretical Coverage (800 mil) | 2.0 | ft2/gal | — |
| Working Time (68°F) | 5.0 | minutes | — |
Safety & Health
- Safety
Read and follow all caution statements on this product data sheet and on the SDS for this product. Wear protective clothing, gloves and use protective cream on face, hands and all exposed areas.
Packaging & Availability
- Packaging Type
- Package Sizes & Shipping Weight
- 2 x 170 g kit per case - 1.5 lbs. (1.46 kg)
- 1 x 170 g bag - 6 oz (0.17 kg)
Storage & Handling
- Shelf Life
- Part A - 5 years at 75°F (24°C)
- Part B - 5 years at 75°F (24°C)
- Storage
Store in a dry, well-ventilated area. Maintain product in original packaging and sealed until ready for use. Avoid exposure to direct sunlight or extreme temperatures.
Storage Temperature - 40 - 110°F
Storage Humidity (Relative Humidity) - 0 - 100 %
- Ventiliation
When used as a tank lining or in enclosed areas, thorough air circulation must be used during and after application until the coating is cured. User should test and monitor exposure levels to insure all personnel are below guidelines.