Repair system · Bosworth
Bosworth KK-Fix rapid belt repair
Field repair for conveyor covers, lagging and rubber components
Bosworth KK-Fix is a fast-application synthetic-rubber repair system for conveyor belt covers, pulley lagging and rubber components in high-wear environments. Kia-Kaha Mining supplies KK-Fix and helps maintenance teams judge whether a field-applied cover repair is the right call, so avoidable downtime is reduced without over-committing to a repair that needs a workshop.
Bosworth · Field guide
Have a kit on site? The full Bosworth KK-Fix application guide and SDS
Step-by-step repair instructions, kit contents, safety and technical data on Bosworth’s dedicated KK-Fix portal. Opens in a new tab.
What we supply
What is in the kit
- 01Repair compound with the matching hardener / catalyst
- 02Cleaning agent and primer / bonding system
- 03Application tools and consumables per kit configuration
- 04Repairs to fabric and steel-cord belt covers, subject to a damage assessment
- 05Pulley-lagging, rubber-lining and selected non-rubber applications with the correct preparation system
- 06Application support and current Bosworth technical documentation
How we select it with you
When a cover repair is the right call
KK-Fix is the right answer when the belt carcass is sound and the damage is in the cover — wear, a gouge, a longitudinal cut, a scuffed splice area, or worn pulley lagging. It is the wrong answer when the carcass is cut, a splice has failed, or the belt has lost tension integrity. Send us photographs and the details below and our team will tell you honestly which situation you are in before you commit a shutdown to it.
Related reading: when a cover repair is right (and when it isn’t) · mechanical fasteners vs vulcanised joints
Documentation (Bosworth)
Kit sizes, components and the cure / return-to-service statement are confirmed against the current Bosworth TDS. Request the technical and safety data sheets with your enquiry.
- Product / model
- KK-Fix & Pulley Lagging Repair Kit — Squichpack V2
- Certificate / report no.
- MASC 26-4549
- Issue / revision
- Issued 06 October 2025
- Scope
- MASC (SANAS test lab) test to SANS 340 (2016) Ed 3, clause 5.3.2.1.1 a) & b) — laboratory-scale conveyor-belt flammability characteristics. The samples tested showed no flame, re-flame or smouldering and complied with the requirements. Covers the samples submitted, for use in South Africa.
Buyer questions
Common questions
Field application
A belt splice covered and sealed against spillage
On a diamond-mine conveyor, a mechanically fastened splice was leaking fines at the fastener line. The splice was prepared and then covered with Bosworth KK-Fix and reinforcing fabric — sealing the fastener plates so material stops working through the joint. An example only: every repair is assessed on its own photographs and belt details first.
01Splice mechanically fastened, then wire-brushed and cleaned ready for sealing.
02KK-Fix compound worked over the splice with the kit spatula, in PPE, on a stopped belt.
03Reinforcing fabric embedded into the wet compound across the fastener plates.
04Cured — the splice is covered and sealed against spillage and carry-back.
Repairs on site
KK-Fix in the field
Real KK-Fix cover repairs and splice seals on conveyor belting. Damage varies — send photographs so our team can confirm a cover repair is appropriate.
Request a quote
Send damage and belt details
Attach photos of the damage, the belt markings and the pulley or lagging condition. Our engineer will confirm whether a Bosworth KK-Fix cover repair is appropriate before you plan the shutdown.