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    Home > Coatings News > Paints and Coatings Market > Main varieties of fusion bonded epoxy coating - 300

    Main varieties of fusion bonded epoxy coating - 300

    • Last Update: 2020-02-21
    • Source: Internet
    • Author: User
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    300 series liquid epoxy resin coating is a two-component, room temperature curing thermosetting epoxy resin coating, which is used for rust prevention and anti-corrosion of ground or underground, suitable for metal, wood, concrete and other materials 300 series of liquid epoxy resin coating can be used for pipeline coating repair field pipeline circular welding joint and valve, related items coating It can be applied quickly and smoothly by roller, brush or spray gun The coating can be up to 16 mil at a time without concave It can be easily applied in the field without heating equipment At 23 ℃, the coating will not peel and stick after 2-3 hours According to experts from China epoxy Industry Association ( the coating can not be used below 13 ℃ 1 Whether the surface treatment coating is good or not depends on the surface treatment The surface must be clean and dry, free of rust and residual coating First remove oil, grease and other pollutants with proper solvent Then, according to the requirements of sspc-sp10 or naceno 2, the metal surface shall be derusted to near white level with clean and dry No 30 screen sand or other suitable grinding materials In order to prevent oxidation and rust, spray as soon as possible after cleaning 2 In the coating process, 300 series liquid epoxy resin coating will precipitate during storage, so the mixing process before use is very important -- mixing: mix part a and part B separately; mix part a and part B together; mix part a and part B completely, and all the colors can show the correct mixing Dilution: dilution can make liquid epoxy coatings easy to mix and prolong gelation time Add diluent into component A and component B respectively and mix them fully; mix the diluted component A and component B together; mix component A and component B completely Note: 100% the gel time of liquid epoxy coating at 23 degrees is 15~20 minutes, and the time of coagulation is 1 hours after dilution - Spray - brush roll - multi-layer coating: 300 series liquid epoxy resin coating can increase the coating thickness through multi-layer coating When the underlying coating is not sticky and soft (the coating will deform under pressure), an additional coating is applied The liquid epoxy resin coating containing solvent shall not exceed 16mil (406um) and 100% liquid epoxy resin coating at one time, and the thickness can be arbitrarily applied at one time - equipment cleaning: butanone or toluene can be used to clean spraying equipment, rollers and brushes - coating repair: repair scratches, cracks, incompleteness or other small defects of fusion bonded epoxy coating Before patching, the polluted, steel sheet and damaged deep layer shall be removed with surface grinder The edge of coating shall be depilated and all dust shall be brushed away When the liquid coating is applied to a small area, the minimum thickness is 12mil (0.305m) The new coating must be fully cured before handling and warehousing, and can be heated to accelerate curing - joint Mending: the welding joint shall be clean and free of mud, oil, grease and other sundries The exposed golden property shall be dusted to NACE No.2 near white level with no.30-60 dry screen sand (590-250um) The adjacent fusion bonded epoxy coating shall be brushed and cleaned and the surface shall be rough The coating from the welding joint to the adjacent shall be 2inch (50.8mm) Using brush, roller or spray gun, the thickness of liquid epoxy resin to be coated shall be 16mil (406um), and the overlapping part shall not be less than 1inch (25.4mm) It must be fully cured before handling 3 Curing instructions: 300 series epoxy resin coating does not stick to hands after 2-3 hours at 23 ℃, and its best performance needs to be cured according to curing guidelines.
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