Navimare Mastic 500 is a tough epoxy filler suitable for crack and damage repair of boats made of metals, wood and GRP. The filler can be used below and above the waterline and can be applied up to thicknesses of 3 mm.
Technical Properties
| Colour / Texture | : Pale yellow / Matt |
| Volume Solids | : 100% |
| Specific gravity | : 1.7 gr/ml |
| Flashpoint | : >60°C |
Surface Preparation
All types of substrates should be primed first. Sand primers lightly with coarse grade of sandpaper. Ensure surface is dry and free from contaminants prior to application of Navimare Mastic 500.
Usage Instructions
Substrate should be dry and free from contaminations. Relative humidity less than 90% RH. Mix pack A and pack B well. Do not mix more than can be used in 1 hour. The product can be applied by brush but preferably by combining trowel and putty knives. Maximum thickness for application in one layer is 3 cm. Typically a layer of 3 mm thickness is applied. After 16 hours the filler can be sanded with a coarse grade of sandpaper. Avoid recoat intervals longer than 48 hours. Do not use at temperatures less than 10°C. Wear protective clothing, goggles and gloves.
Application Data
| Mixing ratio by weight | : Base to hardener: 50 to 50 |
| Mixing ratio by volume | : Base to hardener: 50 to 50 |
| Potlife | : 1 hour at 20°C |
| Practical coverage | : 0.8–1 sq.m/liter at 1 mm thickness |
| Cleaner | : Navimare Epoxy Thinner 7603 |
| Surface Temperature | : Min 5°C / Max 40°C |
Drying and Recoating Times
| Substrate temp. | Dry to recoat | Fully cured | Maximum recoating (1) |
| 10°C | 24 hours | 10 days | 4 days |
| 23°C | 16 hours | 7 days | 2 days |
| 30°C | 12 hours | 4 days | 1 day |
(1) The surface should be dry and free from salts and other contaminants prior to overcoating. When the maximum recoat time has been exceeded or after prolonged exposure times it is necessary to roughen the surface in order to ensure intercoat adhesion. When in doubt, consult your nearest Navimare office.
Health and Safety
Observe the precautionary notices on the label of the container. A material safety data sheet is available upon request and national or local safety regulations should be followed.
- Avoid skin and eye contact by wearing overalls, gloves, goggles, mask, etc.
- Spillage on the skin should immediately be removed by thorough washing with lukewarm water and soap or a suitable industrial cleaner.
- Eyes should be flushed with fresh water and medical attention sought immediately.
- Spraying should be carried out under well-ventilated conditions. Avoid inhalation of solvent vapours and paint mist by wearing an air mask.
- This product contains flammable materials and should be kept away from sparks and open flames. Smoking in the area should not be permitted.
Disclaimer
The information in this data sheet is provided to the best of our knowledge. However, we have no control over either quality or condition of the substrate and other factors affecting the use and application of this product. Therefore, we cannot accept any liability whatsoever or howsoever arising from the performance of the product or for any loss or damage arising from the use of this product. We reserve the right to change the product without notice.
