Knowde Enhanced TDS
Identification & Functionality
- Chemical Family
- Product Type
- Technologies
- Product Families
Features & Benefits
Applications & Uses
- Applications
- Application Area
- General Uses
- Dairy and meat processing plant brick floors
- Industrial Flooring
- Water and Wastewater Treatment
- Commercial Construction
- Bridge and Parking Decks
- Handling Characteristics
Blome Sealant 43 is available in a supplied as a two component, fast curing material. It is installed using dual cartridge caulking tubes or with a plural component pump. Mixed Sealant 43 begins the curing process immediately upon mixing. The material exhibits rapid cure, with an initial cure of 60 minutes, making it ideal for quick turnaround applications.
- Application Guidelines
Ideally the floor surface and joint should be kept dry prior to installation of Sealant 43. However, if joint surfaces are damp, not wet, or could become damp, joint edges can be primed using an appropriate Blome Primer.
- Floor Joint Design
For maximum sealant performance, the following design principles should be followed. A closed cell backer rod should be inserted into the joint, after surface preparation, at a depth equal to ½ of the joint width. Minimum joint width and depth of sealant should be no less than ¼”. In food service applications or severe chemical environments, a full depth sealant joint is recommended.
- Surface Preparation
All surfaces must be clean and dry, void of oil, grease, rust, dirt, dust or other contaminants that may inhibit proper adhesion. For porous surfaces such as concrete, wire brushing is recommended, followed by vacuuming to remove all residual dust, and for nonporous surfaces such as steel, solvent wiping may be adequate.
- Masking and Protection
Since installation of Blome Sealant 43 should follow completion of the floor surface, it is advisable to mask the surfaces adjacent to the joint to minimize cleanup of the finished floor surface. Avoid foot traffic for 30 minutes and 1-4 hours for heavy vehicle traffic and chemical exposure.
- Application Equipment
Blome Sealant 43 is installed using either dual cartridge caulking gun with static mixer tip or using plural component pump with caulking tip.
- Mixing & Application
Mixing of Blome Sealant 43 takes place in the static mixer tip or plural component pump. For best results, install sealant with a continuous motion, trying not to stop during the length of the joint. This can result in unmixed sealant in sections of the joint. Fill joints from the bottom up to prevent voids within the sealant. Excess sealant is cut off to floor level.
- Touch Up & Recoating
Short filled joint sealant or air pockets are best repaired by full removal of the sealant in the affected area and re-installation of the sealant.
- Clean Up
Hand tools and equipment may be cleaned with xylene or MEK after use. Cured material may be difficult to remove.
Properties
- Cured Properties
- Wet Properties
| Value | Units | Test Method / Conditions | |
| Elongation | min. 650 | % | — |
| Tensile Strength | min. 460 | psi | — |
| Hardness | 45.0 | shore A | — |
| Tear Strength | min. 105 | psi | Die C |
| Thermal Shock | No cracking or disbonding | — | — |
| Rapid Temperature Change | No cracking or disbonding | — | — |
| Value | Units | Test Method / Conditions | |
| Solids (Volume) | 100.0 | % | — |
| Pot Life (75°F) | 0.0 | min | — |
| Tack Free (75°F) | 15.0 | min | — |
| Initial Cure (75°F) | 60.0 | min | — |
| Return to service (75°F) | 12.0 | h | — |
Technical Details & Test Data
- Specification Guide
Fill all expansion joints with a two-component polyurea sealant meeting the formulation and performance characteristics of Blome Sealant 43 as manufactured by Blome International, O’Fallon, MO (800) 886-3455.
- Estimated Linear Feet per Gallon of Joint Sealant
DEPTH WIDTH ½” ¾” 1" 1 ¼” 1 ½” 1 ¾” 2” ½” 77' - - - - - - ¾” 51.3' 34.2' - - - - - 1" 38.5' 25.7' 19.3' - - - - 1 ¼” 30.8' 20.5' 15.4' 12.3' - - - 1 ½” 25.7' 17.1' 12.8' 10.7' 8.6' - - 1 ¾” 22' 14.7' 11' 8.8' 7.3' 6.3' - 2” 19.3' 12.8' 9.6' 7.7' 6.4' 5.5' 4.8'
Safety & Health
- Caution
Blome Sealant 43 may cause skin irritation with prolonged or repeated contact. Avoid skin contact and follow the material safety data sheet.
Packaging & Availability
- Packaging
Blome Sealant 43 is supplied as a two-component material, with a 1:1 mix ratio. The material is packaged in either dual cartridge caulking tubes or 10 gallon bulk units.
Storage & Handling
- Storage
- Store unopened components in a dry place, out of direct sunlight and protected from the elements. Storage temperature should be 60-85°F. Properly stored, Blome Sealant 43 will have a minimum shelf life of 6 months
- Keep away from heat and flame. For the 24 to 48 hours just prior to use, adjust the storage temperature to 70-85°F to facilitate handling