Knowde Enhanced TDS
Identification & Functionality
- Chemical Family
- Product Type
- Technologies
- Product Families
Features & Benefits
- Labeling Claims
- Ready-to-Use Product Features
Applications & Uses
- Applications
- Compatible Substrates & Surfaces
- Typical Uses
DEK-Guard DEK-641 Penetrating Primer is used to anchor the DEK-Guard vehicular deck coating system to a concrete substrate. DEK-641 is designed to achieve a deep, penetrating, and permanent bond to concrete substrates. This bond is stronger than the concrete itself, making delamination nearly impossible.
- Cure Time
45-60 minutes.
- Application of Materials
Surface Preparation:
To provide a lasting bond, concrete surfaces receiving DEK-Guard DEK-641 Penetrating Primer must be thoroughly cleaned and prepared by shot blasting or other approved mechanical means, leaving a bare concrete surface having a profile of CSP5 or higher according to the concrete repair institute's concrete surface profile scale. The mechanically prepared substrate must then be thoroughly cleaned of grease, oils, curing membranes, wax, and any other contaminants. The substrate surface must be dry and free of laitance and unsound concrete.
Application of Materials:
DEK-Guard DEK-641 Penetrating Primer should be used in combination with RT-R component and applied over properly prepared concrete. Material is applied using a 3/8” or 1/2” nap roller or chip brush at a rate of 100 to 110 sq. ft./gallon or 14 to 16 mils. In the event of extreme porosity that leads to dry spots without a continuous film of primer an additional coat must be applied. Refer to the DEK-Guard Powder Hardener (BPO) Dosing Chart for RT-R Component and Powder Hardener (BPO) mixing rates.
Properties
- Physical Properties
- Properties
- Excellent bonding capabilities - achieves a chemical bond to other DEK-Guard system components.
- Low viscosity- makes for easy application with a roller or a chip brush.
- UV resistant for indoor or outdoor application.
- Cures fast - under one hour.
- Cures at a wide range of temperatures (-15°F - 90°F).
- 100% reactive - VOC compliant.
- On-Site bond test indicates whether substrate preparation is adequate before system application.
- Seamless repairability - achieves a chemical bond with itself and with other DEK-Guard components.
- Vapor impermeable (When used in conjunction with RT-R component and applied in two coats).
| Value | Units | Test Method / Conditions | |
| Density | 8.1 | lbs / gal | ASTM D1475 |
| Tensile Strength | 3700.0 | psi | ASTM D638 |
| Viscosity | 15-20 | cps | ASTM D2196 |
Technical Details & Test Data
- Bond Test
Bond test should be conducted to determine the adequacy of the surface preparation and the bond to substrate before proceeding with the application of the primer to the entire area. DEK-641 is designed to achieve a bond to concrete substrates which exceeds the cohesive strength of the concrete itself; therefore, there should be fractured aggregate along the entire patty. If only a fine laitance or small amount of concrete is attached, additional mechanical preparation is required.
Safety & Health
- Caution
DEK-Guard DEK-641 Penetrating Primer is a flammable liquid in its uncured state (as provided). All sources of ignition should be removed from the work area before handling this product. No smoking, open flames, or sparks should be permitted in and around the work area. Workers should wear protective clothing including goggles and impermeable gloves. If allowable exposure limits are exceeded, organic vapor respirators should be worn. All on-site personnel should become familiar with the SDS and hazard section of the application binder in order to increase hazard awareness.
Packaging & Availability
- Standard Packaging
DEK-Guard DEK-641 Penetrating Primer is packaged in 38 lb pails and 400 lb drums. Powder Hardener (BPO) is available in 10 lb or 55 lb boxes. This product is sold by weight, not by volume. Product properties require that containers provided are not completely filled. See price sheet for actual container weight and volume.
Storage & Handling
- Pot Life
15-20 minutes.
- Storage Condition
Store material in a cool and dry place out of direct sunlight. Do not store near open flame or ignition source. Read and understand all product labels and SDS prior to use.
- Shelf Life
Minimum 1 year from ship date (unopened).