Alpha DP90 Duct Sealant is a solvent based, synthetic rubber sealant suitable for ducting work. The material cures on atmospheric release of the solvents to form a tough, flexible seal with good adhesion to metal.
Quick skinning time
Easy to apply
No surface priming required
Flexible and durable seal once fully cured
Alpha DP90 Duct Sealant is suitable for sealing in the following applications:
- Flange joints
- Seam joints
- Spigot joints
The following technical information and data should be considered representative or typical only. Therefore, the information should not be used for specification purpose.
*This time is shorter when temperature and relative humidity are higher. It is absolutely necessary to make sure that open time is not excessive. Otherwise, defective bonding could happen.
The performance data presented here has been determined by Alpha Adhesives & Sealants Limited standard test methods and are average values that should not be used for specification purposes. Our recommendations on the use of this product are based on tests believed to be reliable. It is advised that users conduct their own tests to determine the suitability of the product for their specific application. Please note this product is not recommended for substrates like PE, PP, Teflon.
HANDLING & APPLICATIONS
The general application information presented here is based upon typical conditions determined by Alpha Adhesives & Sealants Limited’s own testing. Our recommendations on the use of this product are based on methods believed to be reliable. It is advised that users conduct their own tests to determine the suitability of the product for their specific application.
All substrate surfaces should be cleaned of any dust, grit, loose material, wax, grease and oil using Alpha Cleaner T559.
- Joint edges should be protected using masking tape.
- Cut the tip of the nozzle at a 45° angle to give a slightly larger hole than the gap that has to be filled.
- DP90 can be applied by a pneumatic or hand gun under a uniform pressure to extrude a continuous smooth bead.
- After application, the sealant can be finished by using a wet spatula within 5 to 10 minutes of application. The tape should be removed as soon as possible before formation of a skin.
The rate of cure in the joint is dependent on the ambient conditions, the assembled joint arrangement and the depth of the sealant between the joint faces.
Clean tools immediately after use with Alpha Cleaner T559. Clean hands with a proprietary hand cleaner.
HEALTH & SAFETY INFORMATION
Alpha DP90 is classified as hazardous according to Directive EC 1272/2008. Please refer to the Alpha DP90 Safety Data Sheet for further health & safety information.
Alpha DP90 should be stored in its original container, in dry conditions and at temperatures between 5°C and 20°C. Alpha DP90 will keep satisfactorily for up to 12 months from date of manufacture if stored according to the recommended conditions.
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