Visual repair guide

Carbon fibre bike frame repair guide

A safety-first visual guide for inspecting, preparing and laminating a non-critical carbon bike tube repair with the Mouldcraft kit.

Watch the repair process before checking suitability and choosing the right kit.

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Decide whether this repair belongs at home

Use the kit only for non-critical tube damage where you can inspect the full damaged area.

  • Do not repair forks, handlebars, stems, wheels, brake mounts, pivots, bottom brackets, head tubes or hidden joint damage as a home project.
  • If there is crushing, spreading cracks or suspected delamination beyond the visible mark, get professional inspection.
  • If in doubt, stop here. The guide can help with neat laminate work; it cannot certify a frame as structurally safe.

This guide is not a safety certificate and does not guarantee restored frame strength.

Suitability check

This triage keeps the guide away from critical damage. It is deliberately conservative.

Damage flags

Guide scope looks reasonable

Continue carefully and stop if the damage is larger than first measured.

Verified technical data

CRL epoxy mix ratio by weight

verified

100 parts resin to 47 parts hardener

CRL epoxy mix ratio by volume

verified

2 parts resin to 1 part hardener

Slow hardener pot life

verified

40 minutes for a 100g mix at 77F

Slow hardener tack-free time

verified

8 hours at 77F

Recommended full cure

verified

7 days at 77F

Standard kit contents

verified

150mm x 1000mm carbon fabric, 200g CRL epoxy and hardener, shrink tape, gloves, brushes, mixing cups, sticks, alcohol wipes, abrasive papers, P200 compound and instructions.

Large kit contents

verified

300mm x 1000mm carbon fabric, 400g CRL epoxy and hardener, shrink tape, gloves, brushes, mixing cups, sticks, alcohol wipes, abrasive papers, P200 compound and instructions.

Minimum curing temperature

blocked

Not found in the verified product data. Must be confirmed before final publication.

Shrink tape overlap and wrapping method

blocked

Not found in the verified product data. Must be confirmed before final publication.

Structural layer schedule

blocked

Not found in the verified product data. Must be confirmed before final publication.

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