Introduce
Huazhen Hex Washer Head Self-Drilling Screw with Ruspert coating can provide anti-corrosion performance of 500 hours, 1000 hours and 1500 hours neutral salt spray test. The RUSPERT coating method are suggested to using for tapping screws, drilling screws which need a high anti-corrosion performance after drilling into the object, for example wood and metals. The another important reason to choose RUSPERT coating is it can be coated in various colors, for example, blue, brown, dark, grey, silver, red, etc, almost all the common colors could be achieved. Ruspert coating can also combined with other coatings to achieve more customized requirements.
Ruspert Screw
Surface treatment
Ruspert screw: Ruspert coating (also called ceramic coating) is a high-grade protective coating to prevent metals from corrosion in various pollutive and atmospheric conditions. The surface is usually in silver color but can come in range of colors depending on the application. Ruspert coating consists of three layers:
- The 1st layer: Metallic zinc layer
- The 2nd layer: Special chemical conversion coating layer
- The 3rd layer: Rustproof layer (Baked ceramic surface coating layer)
Contact Corrosion Resistance: Since the free zinc layer is protected from physical contact with other metal surfaces by a non-conductive ceramic top layer, the free zinc layer only provides galvanic protection for the metal substrate. Which means screws coated with Ruspert will not sacrifice its zinc coating to protect the fastener outside the material. This eliminates any contact corrosion problems with other metals or metal-coated materials when used under wet and dry conditions.
Application
- Stainless Steel Structures
- Stitching roof decks and wall panels
- Residential, commercial and industrial frame construction
- Ideally suitable for Coastal regions, Chemical factories etc where protection from corrosion is required
