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Lubricating coating material
Introduction of Product
Lubricating coating material

PAI lubricating paint of Daito lubrication

1. Outline
PAI lubricating paint is a dry film coating agent of a baking type that molybdenum disulfide which is a solid lubricant and fluorine resin are dispersed in PAI resin binder. Especially, it is excellent in heat resistance and abrasion resistance, and can coat on several sliding part such as piston skirt portion of engine. In additional, there are wire coating agent for endoscopes of which the resistance is lowered, coating agent for bolts and nuts improved in adhesion, and paint for engine gaskets which the surface smoothness is improved, and is excellent in airtightness and especially abrasion resistance at high temperature.
2. Features
(1) It is excellent in heat resistance and chemical resistance, and is suitable for combination use with grease and oil.
(2) It is formed a film which is very smooth and low friction coefficient.
(3) It is excellent in adhesiveness (especially aluminum), and the coating film is hard to peel off.
(4) As PAI resin, it cures at low temperature (210 ℃).
(5) Viscosity adjustment (20 - 4000 mPas) can be set by custom order.

Application examples of PAI lubricating paints

■Wire coating

■Coating on bolts and nuts

Application examples of PAI lubricating paints (for spray)

  • ◆Wire coating(LM-152A)◆

Paints with low resistance (frictional resistance) especially among PAI lubricant paints, is adopted.

【Feature】
1. Low resistance
By adjusting the particle size and compounding amount of the solid lubricant, the resistance force was greatly reduced. Ehen the resistance force is smaller, the load on the wire decreases is reduced and the power loss is also reduced.
2. Excellent durability
By adopting PAI resin into binder resin and optimizing the compounding amount of molybdenum disulfide and PTFE, high abrasion resistance has been realized.
3. Excellent flexibility
By PAI resin is used into binder resin, and it is excellent in flexibility extremely.
4. Excellent film thickness stability
Excellent processing technology ensures extremely high film thickness stability, and highly accurate sliding performance has been realized.

Application examples of PAI lubricating paints (for dipping)

  • ◆Coating on bolts and nuts(LM-022AH)◆

Paints with high adhesiveness especially among PAI lubricant paints, is adopted.

【Features】
1. It is a dry film.
Because it is a completed dry, there is no stickiness like the conventional wet type (grease) and it is excellent in workability.
2. Excellent seizure prevention
It is a paint with excellent in adhesion, peeling of the coating film is suppressed, and high seizure resistance has been realized.
3. Excellent durability
It also withstands repetitive fastening of bolts and nuts, and has passed stringent repeated seizure tests.
4. Axial force reduction is small.
Because it is extremely high lubricity, the tightening torque is efficiently transmitted, and reduction of axial force due to tightening is suppressed.

Application examples of PAI lubricating paints (for screen)

  • ◆Coating on engine piston skirt(LM-013AS)◆

Paints with high durability especially among PAI lubricant paints, is adopted.

More than 80% of new car manufacturers in Japan coat engine piston skirt, and the frictional force reduction has been demonstrated by floating liner frictional force measurement test. Our PAI coat has low and stable friction coefficient, as a result, it has become very high adhesiveness. Not only new cars, but it can correspond to aftermarket, and correspond from a small amount of coating.
【Feature】
1. Excellent durability
Some conventional epoxy paint and others may easily peel off, but for our PAI coat’s excellent coating durability has been demonstrated based on durability test on actual machine engine.
2. Excellent heat resistance
By blending PAI resin with excellent in heat resistance, molybdenum and PTFE, an excellent heat resistance has been realized when compared with conventional epoxy resin + graphite (PTFE).

◆Coating on valve sliding parts(LM-035AS)◆

Paints with low surface roughness especially among PAI lubricant paints, is adopted.

【Features】
1. Excellent airtightness
Excellent solid lubricant dispersion technology and screen printing paint are combined, a very smooth coating film (surface roughness is small and roundness is high) is formed, and a very high airtightness is realized.
2. Low sliding resistance
Due to the surface roughness is small and the friction coefficient is low, it can reduce the rotation force (torque).
3. Excellent durability
Due to excellent durability, the rise in the rotational force (torque) due to the number of sliding can be reduced.
4. Excellent oil resistance
Due to excellent chemical resistance and oil resistance of PAI resin, it maintains a stable coating film even it is used in combination with grease.

  • ◆For engine gasket(LM-035AS)◆

Paints with high abrasion resistance and low surface roughness especially among PAI lubricant paints, is adopted.

【Feature】
1. Excellent abrasion resistance
Due to excellent adhesiveness of PAI resin, it is excellent abrasion resistance at high temperature especially. When the temperature becomes high, the gasket may be damaged from the increase of internal stress, and the abrasion resistance of the coated surface at high temperature becomes importance. It also can prevent wear of the gasket from wear due to vibration of the engine.
2. Excellent sealability
Excellent solid lubricant dispersion technology and screen printing paint are combined, a very smooth coating film is formed, and a very high sealability is realized.
3. Excellent heat resistance
Due to excellent heat resistance of PAI resin, the heat resistance is higher than conventional epoxy resin type, and the discoloration will not occur even at a high temperature of 400°C.

Application example of epoxy lubricating paint (for screen printing)

  • ◆For engine gasket(LM-013ES)◆

Paints with high abrasion resistance and low surface roughness especially among PAI lubricant paints, is adopted.

【Feature】
1. Excellent abrasion resistance
Due to optimally dispersing molybdenum disulfide and PTFE in a one-component epoxy resin, it is excellent abrasion resistance at all temperatures. When the temperature becomes high, the gasket may be damaged from the increase of internal stress, and the abrasion resistance of the coated surface at high temperature becomes importance. It also can prevent wear of the gasket from wear due to vibration of the engine.
2. Excellent sealability
Excellent solid lubricant dispersion technology and screen printing paint are combined, a very smooth coating film is formed, and a very high sealability is realized.
3. Excellent cost performance and processability
Due to adopting a low-cost one-component epoxy resin and using an excellent solid lubricant dispersion technology, It is paint with low cost, excellent performance and excellent processability.
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