Repair mortar for quick, water-resistant sealing, ready to use straight from the cartridge. Stormdry Waterproof Express Repair Mortar gives homeowners and tradespeople a neat sand-coloured finish for small pointing and crack repairs. Will the ready-to-use format and flexible formula prevent repeat patching and save time?
⚡ At a Glance
- • Application Ease: Ready-to-use cartridge for fast repairs with no mixing
- • Best for: Repairing damaged pointing and sealing cracks to prevent rain penetration and plugging DPC holes
- • Not ideal for: Large-scale structural repointing or major structural repairs
Ready-to-use mortar supplied in cartridge format for interior and exterior use. Water-resistant, flexible mix blends visually with sand mortar and resists cracking during minor movement.
Stop water ingress - with a water-resistant mortar
Formulated to deliver long-lasting, water-resistant repairs suitable for sealing cracks and plugging DPC holes. The mix hardens to form a barrier that prevents rain penetration when used for small repairs.
Effective at stopping leaks and wet patches around pointing and small cracks, making external masonry less prone to water damage.
Fast repairs without mixing - with ready-to-use cartridge format
Cartridge contains pre-mixed mortar ready to apply straight from the tube, suitable for both interior and exterior applications. Cartridges fit common sealant guns for controlled application.
Speeds up small maintenance jobs, ideal when a quick, tidy patch is needed without preparing traditional mortar mixes.
Durable patches that flex - with a crack-resistant, flexible formula
Increased flexibility in the mortar allows adjacent construction materials to contract and expand without causing the repair to crack. The formulation reduces stress at the repair line.
Repairs are less likely to split under mild movement, so patches stay intact for longer on older or slightly shifting masonry.
✨ The 4 Key Reasons for Stormdry Waterproof Express Repair Mortar
- Ready-to-use Cartridge - Complete small repairs fast, no mixing or specialist tools
- Interior and Exterior Use - Suitable for damp-prone areas, protects against rain ingress
- Colour Matches Sand Mortar - Blend repairs visually by rubbing with substrate dust
- Flexible Mortar Formula - Withstands minor movement, reduces risk of new cracks
📋 Technical Details at a Glance
- Category: Repair mortar
- Format: Ready-to-use cartridge
- Pack size: Pack of 2
- Tube volume: 310ml per tube
- Colour: Grey sand
❓ Frequently Asked Questions
Q: Is this suitable for exterior repairs?
A: Yes, the mortar is suitable for both interior and exterior use and is designed to provide water-resistant repairs outdoors.
Q: How do I match the mortar colour to existing pointing?
A: Colours can be matched by rubbing the mortar with dust from the substrate, helping the repair blend visually with sand mortar.
Q: Can this stop rain penetration and plug DPC holes?
A: Yes, it is suitable for sealing cracks to prevent rain penetration and for plugging DPC holes, delivering long-lasting waterproof repairs.
🏆 Our Verdict
Ideal for homeowners and tradespeople who need a quick, reliable fix for small pointing and crack repairs. The ready-to-use cartridge and water-resistant, flexible formulation produce neat, sand-coloured patches that resist re-cracking. While cost considerations may influence choice, the time saved and durable results make it a sensible option for recurring small maintenance jobs.
