Polyurethane Sealant
Taftflex™ series of polyurethane sealant is a 1 Part Polymeric Elastomer that is designed to be flexible, tough, and can withstand extreme outdoor weather conditions. There is always a Taftflex polyurethane sealant that is able to meet the most demanding sealing and bonding applications that the end users are looking for. Taftflex™ has a series of 1 part polyurethane sealants that are targeted for bus & truck builders, automotive windscreen bonding, marine & yacht builders, metal fabricators, construction & building, signage, and the entire spectrum of industries that use it for assembly purposes. These polyurethane sealants have good elongation, and high strength, and seal perfectly regardless of applications whether indoor or outdoor. With its good bonding integrity and elongation, it can bond to materials like glass, all metals, most plastics, fiberglass, FRP, SMC, wood, and concrete.
TAFTFLEX 6221
Taftflex™ 6221 is a one-component, moisture-curable, multi-purpose polyurethane-based elastomeric adhesive sealant. After curing, it provides a permanently elastic bond to fasten materials with different coefficients of expansion. It bonds extremely well to most metals, painted metals, plastics, concrete, composites, and concrete.
Features
- Bonds to a wide variety of substrates.
- Paintable when fully cured.
- Fast setting.
- Good elongation when cured.
- Noncorrosive to metals.
- Good aging resistance.
- Good outdoor weather resistance.
Specifications
- Chemical Base: Polyurethane Sealant
- Colour: Black, White & Grey
- Curing Method: Moisture
- Density: 1.15 G/cm³
- Non-Sag Properties: Good
- Application Temperature: +5ºC∼+35ºC
- Skin Formation Time @25°C: 70 minutes
- Shore A Hardness: 40
- Elongation At Break: 600%
- Service Temperature: -40°C∼+80°C
Technical Data Sheet - Taftflex™ 6221
Directions
Application Method
- Cleaning: Clean the surface with a strong jet of compressed air, sandblast, or solvent to ensure the surface
is clean, dry, free of oil, and grease, and of sound quality. - Activating/Priming: Activators and/or primers may be required to achieve optimal adhesion depending on the nature of substrates.
- Application of sealant: Cut tip to desired shape and size. Puncture airtight seal. Install with a hand or
power-operated gun and extrude the sealant into the joint. Clean excess sealant using a hard rubber plate or finger wet with a soap solution.
Caulking Method
- TAFTFLEX6221 can be applied by a manual or pneumatic gun. After application, use a putty knife to smooth the joint with soapy water.
- This product should be used within 24 hours of opening the cartridge or sausage; otherwise, the sealant could harden inside.
- Do not apply at a temperature under 5 °C. In cold weather, store the cartridges at about 20 °C before use.
- Avoid any contact with non-cured MS, hybrid PU or silicone sealants as well as with alcohols or ammonia during curing
Cleaning Method
- Always clean the bonding substrates with an appropriate cleaning agent prior to applying the polyurethane adhesive. This will ensure good bonding integrity when fully cured.
Storage Conditions
- Store polyurethane sealant in a cool and dry area (15-25ºC), away from direct sunlight. Storing this product
otherwise may reduce shelf life and affects physical properties adversely. Do not store the polyurethane for more than 30ºC as it may affect the viscosity of the compound and make it difficult for caulk. This product has 12-month shelf life if stored at the recommended temperature.
Handling Precaution
- Refer to Safety Data Sheet (MSDS) before using this product. Always wear personal safety gear when handling this product. (Impervious gloves, eyes protection goggles, respiratory mask.)
TAFTFLEX 6292
Taftflex™ 6292 is a single-component, low modulus polyurethane based elastomeric sealant that provides excellent joint sealing and gap filling function. Its adhesion to most materials makes it an excellent choice for use in bonding and sealing application. Suitable for bonding to concrete, wood, metals, glass, fiberglass, plastics, and composites.
Features
- Bonds to a wide variety of substrates.
- Paintable when fully cured.
- Non-staining to bonded surfaces
- Good elongation when cured.
- Noncorrosive to metals.
- Good aging resistance.
- Good outdoor weather resistance.
Specifications
- Chemical Base: Polyurethane Sealant
- Colour: Black, White & Grey
- Curing Method: Moisture
- Density: 1.43 G/cm³
- Non-Sag Properties: <1mm
- Application Temperature: +5ºC∼+35ºC
- Skin Formation Time @25°C: 90 minutes
- Shore A Hardness: 27
- Elongation At Break: 600%
- Service Temperature: -40°C∼+90°C
Technical Data Sheet - Taftflex 6292
Directions
Application Method
- Cleaning: Clean the surface with a strong jet of compressed air, sandblast, or solvent to ensure the surface
is clean, dry, free of oil, and grease, and of sound quality. - Activating/Priming: Activators and/or primers may be required to achieve optimal adhesion depending on the nature of substrates.
- Application of sealant: Cut tip to desired shape and size. Puncture airtight seal. Install with a hand or
power-operated gun and extrude the sealant into the joint. Clean excess sealant using a hard rubber plate or finger wet with a soap solution.
Caulking Method
- TAFTFLEX6221 can be applied by a manual or pneumatic gun. After application, use a putty knife to smooth the joint with soapy water.
- This product should be used within 24 hours of opening the cartridge or sausage; otherwise, the sealant could harden inside.
- Do not apply at a temperature under 5 °C. In cold weather, store the cartridges at about 20 °C before use.
- Avoid any contact with non-cured MS, hybrid PU or silicone sealants as well as with alcohols or ammonia during curing
Cleaning Method
- Always clean the bonding substrates with an appropriate cleaning agent prior to applying the polyurethane adhesive. This will ensure good bonding integrity when fully cured.
Storage Conditions
- Store polyurethane sealant in a cool and dry area (15-25ºC), away from direct sunlight. Storing this product
otherwise may reduce shelf life and affects physical properties adversely. Do not store the polyurethane for more than 30ºC as it may affect the viscosity of the compound and make it difficult for caulk. This product has 12-month shelf life if stored at the recommended temperature.
Handling Precaution
- Refer to Safety Data Sheet (MSDS) before using this product. Always wear personal safety gear when handling this product. (Impervious gloves, eyes protection goggles, respiratory mask.)
Applications
For concrete bonding and joint gap filling application
Construction
Bonding of wood decking and fiberglass application
Marine & Shipbuilding
Bonding and mounting outdoor signage
Signage
Bonding of stiffener to bus body and sealing application