FRP products that are common in daily life are durable, environmentally friendly and convenient, so how are FRP products anti-corrosion?
1. A brief introduction to FRP anticorrosion:
Use glass fiber reinforced plastic resin/epoxy resin/unsaturated resin, glass fiber cloth and its auxiliary materials to evenly deploy anti-corrosion comprehensive coating construction on the construction surface (metal surface) of the water tank to meet the anti-corrosion design standards.
2. Anticorrosion performance characteristics of FRP
(1), has excellent anti-corrosion performance, strong acid, alkali, salt, chemical solvent, oil corrosion, etc.;
(2) Good adhesion to the substrate, strong wear resistance, impact resistance, good integrity, no cracking, and certain elasticity;
(3) It can improve the strength and elastic modulus of the substrate; it is dustproof, easy to clean and has a long service life.
(4) Improve the thermal deformation temperature and low-temperature impact strength; according to the design requirements, resin cement can be used to paste various acid-resistant, anti-corrosion, stone plates, ceramic tiles and other sheet-like surface materials and other anti-corrosion materials.
(5), lining the surface of the pool. It has long-term water resistance, low water permeability, strong adhesion, high water pressure resistance, acid and alkali corrosion resistance, anti-corrosion and mildew resistance, non-toxic and harmless, long service life, simple construction, no need Advantages such as protective layer.
3. FRP product manufacturers - scope of application of anti-corrosion
Anti-corrosion construction of concrete treatment pools, floors and walls, etc. that require anti-corrosion by strong acid and strong alkali chemical solvents; various steel water tanks and containers; various metal equipment foundation surfaces, etc. Widely used in medicine, chemical industry, machinery, light industry, electronics, power plants,
Acid, alkali and salt-resistant workshops, warehouses, storage tanks, walls, floors, sewage treatment pools and other facilities in battery factories, electroplating factories, aluminum factories, metallurgical factories and other industries.
4. Detailed method:
(1) The base layer is treated with rust removal, and the rust removal method can be
①Grind the metal surface with an angle grinder polishing disc to remove rust, grease or other attachments on the metal surface to achieve a bright metal surface.
②Acid treatment is to pickle the metal surface to achieve the rust removal effect. The characteristic is the rust removal speed. The small pits on the rough surface increase the bonding area and the bonding effect is good.
(2) Epoxy unsaturated resin (191, 196, 306, 3301, 3901, 901, etc.) vinyl lining or external anti-corrosion: resin plus glass fiber cloth to make anti-corrosion and waterproof lining. The practice includes one cloth three oils (also known as one cloth three coatings, one cloth three glues), two cloths four oils (coating, glue), three cloths five oils (coating, glue), four cloths six oils (coating, glue) , five cloths and seven oils (coating, glue), six cloths and eight oils (painting, glue), seven cloths and nine oils (painting, glue), eight cloths and ten oils (coating, glue), nine cloths and eleven oils (coating, glue) ), ten cloths and twelve oils (coating, glue), etc. (and so on, oil, paint, glue is twice more than cloth).
For special requirements, FRP can also be made into enamel lining. After the surface is painted with enamel twice, the surface of the equipment can be smooth, rough, dry and clean.
How to prevent corrosion of FRP products
Apr 21, 2023
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