Hairline Fix – Easy Gelcoat Repair Kit for Boats and Beyond

Hairline Fix is a professional-grade gelcoat repair kit designed to fix stress cracks, crazing, and scratches in gelcoat or fibreglass — quickly and easily. This pre-coloured filler repairs, colours, and seals in one simple step. It’s powered by advanced nanotechnology that penetrates deep into the surface to ensure strong adhesion, lasting durability, and a professional, glossy finish. Whether you’re repairing a boat, jet ski, RV, shower, or sink, Hairline Fix delivers reliable results without sanding, mess, or professional tools. ✅ Fix stress cracks, crazing, and scratches in one application ✅ Strong bonding for long-lasting gelcoat scratch repair ✅ Colour-matched finish for a professional look ✅ Easy DIY application – no mixing, sanding, or primer required ✅ UV and water resistant (above the waterline) for long-term protection For deeper damage, use 9 Second Chip Fix first, then apply a topcoat of Hairline Fix for a smooth, high-gloss result. Suitability Perfect For: Stress cracks under 1mm wide, crazing, and light scratches. For deeper damage, use 9 Second Chip Fix first, then a topcoat of Hairline Fix. Fixes: Fibreglass, acrylic, porcelain, enamel, ceramic, wood, carbon fibre, drywall, and stone. Use It On: Boats, jet skis, RVs, showers, tubs, sinks, tiles, countertops, and walls. Also suitable for plastic, PVC, aluminium, and carbon fibre. Finish: Gloss 60-Day Customer Satisfaction Guarantee Lifetime Durability Guarantee. Colours Available in 10 popular colours: Snow White Oyster White Matterhorn White Cream Navy Blue Royal Blue Midnight Strawberry Forest Green Burgundy Colour Disclaimer Actual colours may vary from what you see on your screen due to factors like device settings, light conditions and individual light perception. For recommendations, please contact us via email or telephone. Please note any colour recommendations we provide are based on the information you share with us. Tech Specs Water-soluble, one-part epoxy filler and sealant UV and water resistant (for above-waterline use only) Can be sanded and drilled Primer not required Apply at temperatures above 20°C / 70°F In cooler conditions, set with a hairdryer for 2 minutes Volume: 12.9ml / 0.43 fl oz Application Instructions Using a needle or pin remove dirt and grime from the affected area. For quality fibreglass boat repair and general fibreglass repair, scrub soapy water into the affected area to remove any dirt or grime. Rinse and fully dry. Knead and shake the tube/s for 2 minutes. Apply 2 drops of Hairline Fix on the affected area. Gently level the repair with the end of the tube. Immediately remove smears and clean LEVEL with a damp tissue. If required, polish after 48 hours. Wet Areas: Seal after 1 hour with clear sticky/scotch/cello tape for 14 days. Water resistant, not suitable for surfaces which are continuously submerged. Deep Damage: Repeat every 2 hours for 2/3 times. Below 20C/70F set repair with a hairdryer for 2 minutes. Glossy Sealant for MagicEzy 9 Second Chip Fix FAQs How much damage can it repair? Hairline Fix is used for small hairline cracks (6mm or, 1/4 inch). One tube of Hairline Fix will repair 15 to 20 6-inch (or 150mm) long stress cracks. Do I need to prime the surface first? Hairline Fix will adhere to fiberglass without a primer. For plastic or aluminium surfaces or to strengthen weakened fiberglass, apply a coat of MagicEzy Mega Fusion primer first. Will it repair hull damage? The product will professionally repair areas that are above the waterline. You have a lot of whites to choose from. How do I select the right one? It’s difficult to provide accurate color recommendations, but I can describe our white colors to help you make a choice. Snow White (RAL 9003) is a clean, pure white (Our brightest and best selling white) Oyster White (RAL 9010) is an creamy off-white Matterhorn White (RAL 9002) is an off-white with a slight grey tone. Can I add other tints or colorants to the product to achieve a color match? No. Mixing additional products compromises the adhesion and effectiveness of MagicEzy products. We do not guarantee any products that have been mixed with other additives. However, two of our products can be mixed together. Does the color dry lighter or darker than the color on the swatch? The product is the same color wet or dry. When selecting colors note that the appearance of colors vary depending on the computer screen. If you’re not sure, buy one of our kits so you can blend colors to suit. How long does it take to dry? In temperatures over 20°C / 70°F, our repairs are already extremely strong within 24 to 48 hours. Can I sand the product once dried? Yes, although we do not recommend it. Simply use the end of the tube to create a level repair. If you do want to sand the surface, please allow 7 days for the product to fully cure before sanding. Can I paint over the product? Yes, with water-based paints. How do I store tube once opened? We suggest that you store the remaining product in the refrigerator. What if I am not satisfied with the results? All MagicEzy products come with a MONEY BACK guarantee. Simply return it to us (with the receipt) within 60 days and we’ll provide a full refund or replacement. Safety Data Sheet Download How To