640 / 7640 Permanent Protect
These are highly advanced SiO² coatings which were created to address the needs of the marine, military and aerospace sectors. They are massively resistant to corrosion, abrasion and temperature. They can be applied to metal, plastic, powder coated and painted substrates. The coatings can be heat cured, or cured at ambient temperature. 640 / 7640 Permanent Protector react with the substrates surface and form an abrasion resistant coating with very high bonding properties on metal. They generate thin, transparent coatings with high impact strength and is resistant to alkali, abrasion and corrosion.
Difference between 640 and 7640
The 7640 offers almost identical performance characteristics to the 640 coating but the solvent balance has been altered in order to allow for a longer working time. The coating can be applied in exactly the same way as the 640 coating but buffing (if required) can be conducted up to 20 minutes after application. This makes the application on to autos, aircraft and boats, significantly easier. All of the other key points are the same as 640.
Downloads & Videos
- Product Sheet: 640 Permanent Protect / 7640 Profi Protect (PDF)
- Presentation: Corrosion Protection Permanent Protector (PDF)
- Instructions: Application of ALGT Permanent Anti-Corrosion Coating (PDF)
- Insights: Permanent Protector Hardeness (PDF)
- Instructions: Application of 7640 on Car Paintings and Rims (PDF)
Key Features
Application Temperature
Coverage Rate per Liter
Durability of the Coating
Shelf Life of the Liquid
6-12 months after opening
Storage Temperature
Curing Time
Properties
- Contains solvent (not water)
- Clear, colourless liquid based on silanes
- Ultra high performance, hardness of 7-9H
- High impact strength
- Is ideally suited for the water/dirt-repellent coating of non-absorbent materials in outdoor and indoor areas
- Can be sprayed or wiped on to surfaces
- Generates a generally invisible surface. The coating does provide a glossy appearance
- Extremely resistant to corrosion, alkali, abrasion, sea water and salty air (extensive Salt spray testing has been conducted. In addition testing shows that this coating is also resistance to rocket fuel!)
- Highly resistant to a large number of organic solvents
- Treated surfaces remain clean for prolonged periods and are “easy to clean”
- Protected surfaces provide reduced costs for cleaning and care
- Food safe
- Heat resistant up to 700-750°C working temperatures
- Cold resistant up to -90°C
- Highly effective for up to 25 years
- Heat drying increates the hardness of the coating, which ranges from 7H (for room temperature curing) to 9H (for heat curing)
