WALTHER STRONG HD Blue Scrim Tape - 50mm x 90m
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B&QB&Q - Hd Blue Scrim50mm X 90M Waterproof Wetroom & Cement Board Scrim
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Product Information
Full details
The WALTHER STRONG HD Blue Scrim Tape is designed for professional contractors and serious DIY enthusiasts who require high-strength reinforcement for joints in demanding construction environments. Its primary benefit is the 120N/50mm tensile strength combined with ALKAMAXX alkali-resistant technology, which effectively prevents cracking in high-moisture or cement-based systems; however, users should note that its heavy-duty nature and high-tack adhesive make it more rigid and aggressive than standard thin drywall mesh tapes.
All features
| Model Part Number | 1396202 |
|---|---|
| Brand | WALTHER STRONG |
Extended Product Information
FAQs
Can I use this tape for exterior projects?
Yes, the HD Blue Scrim is fully waterproof and alkali-resistant, making it suitable for both internal and external reinforcement tasks.
Is this tape compatible with standard plasterboard?
While designed for heavy-duty cement and construction boards, it can be used on standard plasterboard, though it is significantly thicker than standard drywall scrim.
Does the alkali coating expire?
When stored in a dry, temperate environment, the ALKAMAXX coating remains effective for the standard shelf life of the product.
How much overlap should I use at joints?
It is recommended to overlap the mesh at corners or intersections by at least 50mm to maintain structural integrity.
Can I use this with self-levelling compounds?
Yes, its resistance to alkali makes it an excellent choice for reinforcing self-levelling compound layers on subfloors.
Troubleshooting
Tape failing to stick to surface
Ensure the board surface is free of dust, grease, or moisture; wipe the area clean before reapplying.
Tape showing through finish coat
Apply a thicker initial bed of joint compound to fully embed the tape, and ensure you use a wider feathering technique with your trowel.
Edges curling during installation
Use a sharp utility knife to cut the tape rather than tearing it, as tearing can fray the mesh edges.
Pros and Cons
Pros
- Excellent alkali resistance prevents long-term breakdown
- High tensile strength effectively bridges and reinforces joints
- Strong adhesion to coarse and irregular construction surfaces
- Suitable for high-moisture environments like wetrooms
Cons
- Higher thickness may require more compound to feather out smoothly
- High-tack adhesive can be difficult to reposition once applied
- Over-application may cause slight ridges on thin finishing coats
Setup, Compatibility & Care
To achieve optimal results, ensure the surface is clean, dry, and free of loose dust or debris before application. Measure and cut the required length of tape, then press firmly along the joint line, smoothing it down to ensure full contact. When applying over joints between boards, ensure the mesh is centered. For storage, keep the roll in a cool, dry place away from direct sunlight to preserve the integrity of the adhesive. The tape is specifically formulated for compatibility with cement boards, concrete boards, and various specialized construction boards, but always verify surface compatibility if using proprietary high-build coatings.