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W61-09 High temperature resistant exhaust pipe coating

W61-09 High temperature resistant exhaust pipe coating

Composition: It is composed of organic silicon resin, active antirust pigment, penetrating agent, curing agent, additives, etc.
Performance: This product not only has high temperature resistant performance, but also has excellent weather resistant, corrosion resistant performance. After high temperature treatment, the paint film can make the organic silicon and silicate minerals connect together, so as to protect the base material. This product has improved the poor corrosion resistance ability of former organic silicone coatings under normal temperature, high temperature and washing alternate cooling and heating state.
Application: The coating can be used in automobile, motorcycle, agricultural vehicle exhaust pipe, engine and diesel engine high-temperature parts.

Product specification

Temperature resistant range Paint film color Coating types Mixing  proportion
500℃ Black, aluminum pink, metallic pigments Finish paint, primer, One-component, Dual-component
600℃ Black, aluminum pink, metallic pigments Finish paint, primer, One-component, Dual-component
700℃ Black, aluminum pink, metallic pigments Finish paint, primer, One-component, Dual-component
800℃ Black, aluminum pink, metallic pigments Finish paint, primer, One-component, Dual-component

Technical parameters

Item Index
One-component Dual-component
Luster 1-10 1-5
Viscosity(painting -4) 20~40s 20~40s
Drying time Baking:220℃ 30min or 280℃ 10min surface dry ≤3h, hard dry ≤24h
Flexibility ≤2mm ≤2mm
Adhesion ≤2级 ≤2级
Impact strength ≥40kg·cm /
Heat resistance(500-800℃ 2h) Non foaming non cracking Non foaming non cracking
Salt spray resistance (neutral) (210℃~220℃,Baking)200h 200h

Construction method

1、Base material processing The coated base material surface must carry out thorough removal of grease, scale, rust, old coating, and etc., using shot or sand blasting method, to reach Sweden derusting standard Sa2.5 grade and roughness of 30-70μm, manual derusting methods can also be adopted to reach Sweden derusting standard St3 grade and roughness of 30-70μm.
2、Mixture (applicable for two-component paint)
According to the weight ratio (the label on the product packaging shall prevail).
When mixing, under the condition of stirring the main agent continuously, slowly pour in curing agent to make it fully ad evenly stirred.
20 min after curing of the well mixed coating, filter with 60-80mesh screen, and pour into another container for spare use.
The mixed coating is valid for 3 hours; please arrange the use according to the construction progress.
3、Baking (applicable for one-component paint)

Product name Baking temperature Holding time
High temperature resistant exhaust pipe coating 220℃ 30min
280℃ 20min

4、Construction conditions
Coating operation shall be performed as soon as possible after the substrate processing, generally not exceeding 8 hours. The substrate surface temperature and environmental temperature are generally no less than 10℃, the surface temperature shall be at least 3℃ higher than the dew point temperature, and the relative humidity of the air shall not exceed 85%.
5、Coating method
This coating can use brush coating, airless spraying and auxiliary air spraying method for construction.
6、Dilution
Generally the coating shall use the matching thinner to adjust viscosity and cleaning tools.
7、Coating intervals
One-component paint can carry out later coating after drying; two-component paint is suggested to have the coating time intervals as follows:

Substrate temperature 5℃ 20℃ 30℃
Shortest 48h 24h 12h
Longest No limit