Product Description
It is composed by epoxy resin, iron oxide red, new-type antirust pigment, antirust additive and multi-amine adduct curing agent. Packaging is divided into Component A and Component B. It is a kind of primer cured at room temperature and become dry quickly. The film has excellent physical and mechanical properties and can be mixed with various primers. Harmful gas is reduced during welding because of no metallic zinc. The film has perfect welding and cutting performance, thickness of the film is in the specified range and has no influence on welding performance.
Design Purpose
It is used as workshop primer for steel pretreatment line in shipyard and heavy machinery yard, maintenance period is about 3~6 months, and it also can be used as antirust primer.
Physical Parameters | Color: | Rusty red | ||||||||||||||
| Luster | Lusterless | ||||||||||||||
| Theoretical spreading rate | 120g/m2, 9.58m2/L (calculated by 25μm dry film, excluding loss) | ||||||||||||||
| Specific gravity: | About 1.15 | ||||||||||||||
| Drying time | 23±2℃: surface dry ≤4min, hard dry≤24h | ||||||||||||||
| Entirely cured | 23±2℃: 7d. | ||||||||||||||
| Flash point | 50℃ | ||||||||||||||
| Storage period | 12 months | ||||||||||||||
Construction Instruction | Mixing ratio | Component A (paint): Component B (curing agent)=6:1 | ||||||||||||||
Maturing time | 23±2℃: 0.5~1h | |||||||||||||||
Service life | 23±2℃: 8h | |||||||||||||||
Construction method | High pressure siphon spray, air spray, manual brushing, roller painting. | |||||||||||||||
Diluent | Diluent for X-7 epoxy coating | |||||||||||||||
The largest amount of dilution | High pressure siphon spray | Air spray | Manual brushing, roller painting | |||||||||||||
10% | 10% | 5% | ||||||||||||||
Spray orifice | 0.43~0.48mm | 2.0~2.5mm | _ | |||||||||||||
Spray pressure | 15~20Mpa | 0.3~0.6 Mpa | _ | |||||||||||||
Tool washing | Diluent for X-7 epoxy coating. | |||||||||||||||
Film coating thickness | Wet film: 100μm, dry film:60μm | |||||||||||||||
Coating interval |
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Surface treatment | Surface of the steel shall be treated with shot-blasting and sand-blasting to reach Swedish de-rusting standard, Class Sa 2.5; | |||||||||||||||
Construction condition | Substrate temperature shall be more than dew point above 3℃, relative humidity shall be less than 85%; If the substrate temperature is lower than 5℃, epoxy and curing agent stop reaction, construction can’t be undertaken. | |||||||||||||||
| Prior primer | Epoxy resin coating, epoxy bituminous coating, chlorinated rubber coating, acrylic resin coating, alkyd resin coating, phenolic resin coating, chlorosulfonated polyethylene coating, high chlorinated polyethylene coating, etc. | ||||||||||||||
Packing Specification | Container of 20 liters can load Component A of 24kg, container of 5 liters can load Component B of 4kg. | |||||||||||||||
Considerations | Dry spray occurs easily when construction is under high temperature season. In order to prevent the occurrence of dry spray, diluent shall be added to make adjustment until there is no dry spray; | |||||||||||||||
Safety guide | Avoid inhaling solvent vapors and painting mist for long term, skin and eye may not contact with the product. Forced ventilation shall be provided when applying the paint in confined spaces or stagnant air, although in good ventilation, protection tools shall be worn. | |||||||||||||||
Annotation | *Above-said thickness of dry film and wet film refers to the index while implementing the high-pressure siphon spray; *Relevant data in this instruction is obtained from laboratory, the actual product may be slightly different from it; *If above data is changed, the data is based on the latest instruction, without prior notification. |