Bostik Stix A640 Pressure Sensitive Adhesive - Cream - 15kg
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Product Information
Full details
The Bostik Stix A640 Pressure Sensitive Adhesive is an ideal solution for professional flooring installers and DIY enthusiasts looking to secure PVC sheet and tile coverings with a durable, long-lasting bond. This high-performance, solvent-free adhesive offers excellent initial tack and reliable strength for a variety of subfloor surfaces, though users should ensure they are comfortable working with a pressure-sensitive formula that requires specific trowel techniques for optimal results.
All features
| Colour | Cream |
|---|---|
| Model Part Number | BOS-A640-15KG |
| Brand | Bostik |
Extended Product Information
FAQs
Can I use this on underfloor heating?
Yes, it is suitable for warm water underfloor heating systems up to 27 degrees Celsius.
Is this adhesive solvent-based?
No, Bostik Stix A640 is a solvent-free, water-based adhesive with low VOC emissions.
What type of trowel should I use?
The manufacturer recommends using a 2mm notched trowel for best results.
Can I use this for outdoor flooring?
This product is designed for indoor use. It is not suitable for external environments.
How much does a bucket weigh?
This product comes in a 15kg bucket.
Is the bucket recyclable?
Yes, the bucket is made from post-consumer recycled materials.
Troubleshooting
Adhesive is not sticking to the subfloor
Ensure the subfloor is clean, dry, and free of dust, oil, or loose particles before application.
Flooring is lifting after installation
Verify that the correct 2mm notched trowel was used and that sufficient open time was allowed for the adhesive to develop its pressure-sensitive properties.
Pros and Cons
Pros
- Excellent high-temperature stability
- Environmentally friendly packaging
- Low VOC and minimal odour
- Versatile application on diverse subfloors
- Compatible with underfloor heating
Cons
- Requires specific 2mm notched trowel for best results
- Adhesive remains permanently tacky, which can be messy if not applied cleanly
- Needs proper subfloor preparation to ensure a secure bond
Setup, Compatibility & Care
To apply, use a 2mm notched trowel to achieve the correct coverage rate and adhesive ridge profile. Ensure the subfloor is level and dry before application. The product is compatible with standard cementitious subfloors and timber-based substrates like hardboard and chipboard. For maintenance, keep the bucket tightly sealed when not in use to prevent the adhesive from drying out, and store it in a cool, dry place. Cleaning tools should be done while the adhesive is still wet using water.