Gelcoat Cracking – How to Repair
often referred to as star crazing, are one of the most common issues we see on caravan and motorhome composite panels across Queensland. These fine, hairline fractures might look like a minor cosmetic annoyance, but under the harsh Australian sun, they can quickly escalate.
Untreated gelcoat cracks don’t just dull your van’s shine; they compromise the exterior, potentially allowing moisture to penetrate the laminate. At RNR Refinish, we specialise in professional caravan gelcoat repairs and refinishing. From our state-of-the-art facility in Clontarf, we restore damaged panels to their original factory finish, ensuring your pride and joy stays protected against the elements.
What Causes Star Crazing?
In the Moreton Bay region and beyond, caravans are subjected to extreme temperature fluctuations and intense UV exposure. This environmental stress, combined with structural movement during travel, leads to tension within the outer gelcoat layer. Common causes include:
- Structural Flex: Movement in front and rear panels or roof sections while on the road.
- Impact Damage: Stress from stones or pressure during transit.
- UV Degradation: The “chalking” and ageing of the gelcoat due to high UV levels.
- Thermal Expansion: Rapid heating and cooling of composite materials.
These cracks are most frequently found in high-stress areas like corners and roof joins. Because they are structural in nature, they rarely stop on their own and require professional fibreglass gelcoat repairs to prevent long-term delamination.
Why Proper Caravan Fibreglass Repairs Matter
Correcting gelcoat damage is about more than just aesthetics—it’s about panel integrity. “Quick fixes” like DIY fillers or simple buffing often fail because they don’t address the stress point.
Our professional approach to caravan fibreglass repairs focuses on stabilising the underlying structure. By properly repairing the damaged layer before refinishing, we ensure the repair moves with the caravan, preventing the cracks from reappearing after your next trip up the coast. This is why we are a recommended repairer for leading insurers, providing peace of mind for those navigating the insurance claim process.
Our Proven Gelcoat Repair Process
Every van that enters our workshop undergoes a rigorous assessment. Whether it’s a standard caravan or a specialist unique repair, our process ensures a seamless finish:
- Preparation: We remove hardware, decals, and contaminants to reach the “naked” panel.
- Stabilisation: The star crazing is ground out and filled with high-grade resins to stop the spread.
- Refinishing: The panel is primed and then moved to our specialised spraybooth for a flawless paint match.
- Detailing: The surface is denibbed, polished, and all hardware is refitted to original specifications.
Specialists in Brisbane Caravan Gelcoat Repairs
RNR Refinish is a family-owned leader in composite panel restoration, serving owners across Brisbane, the Sunshine Coast, and the Gold Coast. Our deep understanding of modern RV construction—from Jayco to custom builds—allows us to deliver manufacturer-grade results.
Whether you’ve noticed a small patch of star crazing or require a full panel refinish after a storm, don’t wait for the damage to spread.
Contact the RNR Refinish team today to arrange an assessment at our Clontarf workshop and get your van back to showroom condition.