Perlfix vs Gyproc Adhesive Compared
Compare Knauf Perlfix with British Gypsum Gyproc DriWall adhesive for dot and dab plasterboard fixing in UK construction.
Side-by-Side Comparison
| Feature | Knauf Perlfix | Gyproc DriWall Adhesive |
|---|---|---|
| Bag size | 25 kg | 25 kg |
| Coverage per bag | 1.5-2.5 m² | 2.0-2.5 m² |
| Working time | 30-45 minutes | 45-60 minutes |
| Price per bag | £5-7 | £5-8 |
| Colour | Grey | Pink/grey |
| Setting time | ~60 minutes initial | ~60-90 minutes initial |
| Manufacturer system | Knauf | British Gypsum |
| Availability | Widely available | Widely available |
Key Differences
- Gyproc DriWall has a slightly longer working time — better for beginners or hot weather
- Perlfix often has marginally better initial grab — useful on smooth backgrounds
- DriWall coverage rates are slightly higher per bag on flat walls
- Both are CE marked and suitable for all standard dot and dab applications
- Most tradespeople develop a preference based on experience — both perform well
Tips for Best Results
- Always prime dusty or porous backgrounds with PVA or SBR
- Mix to a thick, buttery consistency — not too wet
- Apply dabs at 300-450mm centres with perimeter and horizontal bands
- Use 3 vertical rows of dabs per 1200mm board width
- Press board firmly and check with straightedge while adhesive is workable
Related Calculators
Use the Dot and Dab Calculator for adhesive quantities, or the Coving Calculator for finishing materials.
How We Calculate This
Frequently Asked Questions
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Last updated: April 2026
All calculations are estimates. Verify with your supplier.