Crack Stitching Kit | Helical Bars and Resin | Strucsol

Crack stitching kit with helical bars and resin

This resin crack repair kit brings together stainless steel helical bars and resin in a masonry repair system for structural cracks in brickwork and masonry. Choose your bar quantity and whether to include a heavy-duty applicator, with technical and design support available for your repair.

A handy crack stitch repair kit that comes with different variations of bar, with the correct ratio of resin already assigned based on a standard bed depth. A high-quality applicator can be added optionally too, bearing in mind that standard mastic caulking and silicone guns are not suitable for pumping resin as they are not strong enough to cope with the pressure.

Helical bar kit contents and options

Based on your chosen quantities, you will get 6mm x 1m stainless steel helical bar, 300ml polyester resin (each tube comes with its own nozzle), with or without a heavy-duty 300ml applicator gun based on your choice.

300ml polyester resin for crack repair

Our 300ml resin is styrene free- this means it has no noxious smell and a higher bond strength, making it ideally suited for indoor use while still maintaining a reasonable price. Our helical bar (Strucsol Ultrabar) is UK manufactured, hand tested and quality checked so you can guarantee you're getting the best product.

Please note, using a standard mastic gun for these resins is risky as they are not designed to cope with the pressures needed to push resin (they're meant for sealants and caulking only!), so unless you have a heavier duty sealant gun, we can supply one that will do the job for you.

Why not add a mortar raking blade to your order? These are essential for raking out your bed joints - click the box above to include this in your order.

Looking for a kit with 400ml resin? See here

Professional-grade crack stitching kit for brickwork and masonry | easy DIY or contractor use

Additional extras such as mortar raking blades, pointing trowels and helical bar tools can be added to your order if needed - see the add-on box when adding to basket.

Masonry repair system applications

• Brickwork Repair: Fixes vertical, horizontal, or stepped cracks in brick walls, chimneys, and facades.
• Masonry Restoration: Strengthens cracked stone, concrete, or blockwork in buildings and structures.
• Arch Stabilisation: Reinforces cracked or weakened arches in heritage or modern properties.
• Foundation Repair: Once the foundational repair has been carried out, crack stitching can be done to reinforce the superstructure above. NOTE crack stitch repair is not a foundation repair method on its own.
• Garden Walls: Repairs cracks in garden walls, retaining walls, and boundary structures.
• Heritage Conservation: Preserves listed buildings and historical structures with discreet, strong repairs.
• Coastal Properties: Ideal for high-salinity environments where corrosion resistance is critical.

Struggling with cracks in brickwork, masonry, or concrete? Our crack stitching kit is a practical solution for repairing vertical, horizontal, or stepped cracks in walls, arches, and structures. Using high-strength crack stitching bars and rapid-set resin, this crack stitching kit is designed for a permanent structural repair. Ideal for homeowners, DIYers, and builders alike.

This wall stitching kit includes everything you need, barring a few extras such as mortar raking blades and pointing trowels, as most people usually already have these; however, you can easily add these to your order if you wish via the add-ons box. It can repair approximately 10 metres of cracking (coverage depends on bed joint thickness). Whether you're restoring a heritage building, modern property, or garden wall, our helical bar stitching and resin system ensures a strong and visually discreet repair.

Why choose our brick repair kit?

Stainless steel helical bars: strength and corrosion resistance

Unlike lower-grade alternatives, our crack stitching bars (similar to Helifix crack stitching bars) are UK-manufactured from 304 CU austenitic stainless steel, ensuring high linear strength and exceptional corrosion resistance. Perfect for coastal properties or high-salinity environments where inferior materials may fail.

Also known as crack stitching rods, these helical bars form the reinforcement in this helical repair kit.

Discreet Repairs

The helical bars in our crack stitch kit blend seamlessly into your masonry when bound with the resin and repointed with matching mortar over the top, ensuring a clean and almost invisible finish: ideal for listed buildings, heritage properties, and modern homes where aesthetics matter.

Full Technical & Design Support

We provide comprehensive technical support to ensure your repair is successful. Send us a photo of the problem area, and we’ll overlay a repair specification onto the image, recommending the best approach and products for your needs.

How to use the helical bar and resin crack stitching kit

You can follow the comprehensive video and visual guide on completing cracked brickwork repairs here, or read on below for a summary:

Prepare the Crack

Rake out the mortar joint to allow for 500mm spacing either side of the crack for the bar to slot into. Make sure to remove as much dust from the slot as possible using either an industrial vacuum or one of our manual dust blower pumps. If possible, dampen the slot with water, as this helps the resin bind to the surroundings better.

Install Helical Bars

Apply a bead of the resin (make sure to discard the first 10ml of the tube, as this won't be fully mixed) along the full width of the back of the slot, and insert the stainless steel crack stitching bars into this resin using one of our pointing trowels, followed by another bead of resin over the top of the bar.

Finish & Inspect

Smooth the resin over with the pointing tool, allow 10 minutes for the resin to set, and you can now begin preparing to repoint mortar over the top of the resin.

Who can benefit from this crack stitch repair kit?

Our brick stitching kit is ideal for:

• Homeowners fixing cracks in brickwork, chimneys, or garden walls
• Builders and contractors needing a reliable, long-lasting repair solution
• Property developers restoring older or damaged buildings
• Heritage conservationists preserving historical and listed structures
• DIY enthusiasts looking for a professional-grade, easy-to-use crack stitching kit

Order Your Crack Stitch Kit Today!

Don’t let cracks compromise the safety or appearance of your property. Our crack stitch repair kit offers a permanent, cost-effective solution. Order now and restore your structure with confidence!

Our helical bar is manufactured in the UK out of 304 CU austenitic stainless steel, unlike lower grade alternatives manufactured from ferritic stainless steel. This means that it has high linear strength and corrosion resistance, allowing for consistent maximum bond strength gain when paired with the grout or resin bonding adhesive. Strucsol helical bar can be used with great confidence and durability in areas of high salinity such as coastal properties without fear of corrosion or fatigue failure.

Full technical and design support supplied with product- if you send us a photo of the problem area we will overlay the repair specification onto the photo and recommend required products (see sample method statement in Photos)

For a full and comprehensive guide on completing crack stitch repairs, please visit the guide here

Give Ultrabar composite a try:

HAVE YOU TRIED our new Ultrabar Composite kits? Our next generation helical bar performs 5 times stronger than stainless steel!

If you need any other materials, tools, resources or any advice regarding specific building requirements- don't hesitate to contact us.