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Professional Building Supplies£8.29Visit shop Cromar Ribbed Metal Roller/ Bubble Buster - 70Mm X 21Mm
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The Cromar Ribbed Metal Roller (70mm x 21mm) is a specialized tool engineered for professional composite fabrication, ideal for technicians looking to achieve structural integrity and aesthetic precision in fiberglass and resin projects. Its primary benefit is the efficient consolidation of resin into matting while simultaneously removing air bubbles to ensure a high-quality, durable finish. While this tool excels at heavy-duty work, users should note that the aggressive ribbed design requires careful handling to avoid disturbing delicate matting fibers during the saturation process.
| Model Part Number | BUBBLE70 |
|---|---|
| Brand | Cromar |
Yes, the metal construction is fully resistant to epoxy, polyester, and vinylester resins.
Rinse the roller thoroughly in acetone immediately after use. Ensure all resin is removed from the grooves before storing.
It is generally too aggressive for thin carbon fiber fabrics; it is primarily designed for chopped strand mat and woven fiberglass.
With proper cleaning and maintenance, the metal head will last for thousands of applications.
A 3:1 ratio provides the ideal balance between structural strength and weight, preventing the laminate from becoming too brittle or too resin-rich.
The handle is designed for professional longevity, but we recommend inspecting the connection points for wear periodically.
Check for dried resin buildup in the axle mechanism; soak in a solvent to dissolve residue.
During application, occasionally roll the tool over a clean section of matting or a piece of release film to 'offload' excess trapped fibers.
Decrease applied pressure or ensure that the resin has reached the correct viscosity before rolling; do not over-roll as the surface begins to set.
Before use, ensure the roller is clean and free of hardened debris from previous projects. This tool is compatible with all standard laminating resins. To maintain the tool, always submerge or rinse the roller head in an appropriate solvent (such as acetone or a specialized resin cleaner) immediately after the resin has reached its gel state. Do not leave the roller sitting in resin, as the ribs are difficult to clean once cured. Periodically inspect the axle and handle connection to ensure the roller spins freely without catching.
