Appearance
The surface shows cut slashes.

Causes

• Cut by sharp grooves or parts
• Contamination of raw materials during production
• Poor quality or low hardness seals

Solution

• Appropriate groove design
• Avoid sharp parts
• Use good quality or harder seals

Appearance
O-ring has been pressed parallel, and the surface has been scuffed by dust.

Causes

• Seals with rough and uneven surfaces
• Particulate dust erosion during initial use and manufacturing
• Movement of grooves or poor groove design
• Rapidly rising or falling temperatures

Solution

• Applying proper lubricant to reduce friction
• Reduce loading on poor grooves
• Choose manufacturer carefully

Appearance
The surface shows a ragged edge in the inner diameter at low pressure.

Causes

• Excessive compression
• Poor quality or low hardness
• Seal size larger than the groove
• Irregular or sharp nature of grooves
• Surface voids

Solution

• Use good quality or high hardness
• Proper groove design
• Do not cut corners on the processing time
• Be careful not to buy products that are too cheap

Appearance
The surface of this seal shows blisters, cracks, cavities, discoloration, and other reactions.

Causes
Inability to resist certain chemical properties plus or too hot environment.

Solution
Use a product that is resistant to certain chemicals or has high heat resistance.

Appearance
The surface of this seal shows blisters, unevenness, pits, etc.

Causes

• Rapidly rising or falling air pressure
• Poor quality or low hardness seals

Solution

• Use good quality or hard seals
• Slow rise or fall of air pressure

Appearance
Discoloration, erosion damage, and powder residue on the surface.

Causes

• Chemical ion and electron impact
• Poor groove design
• Chemical incompatibility between the seal and the process

Solution

• Use a seal that is resistant to ions
• Check the design of the grooves to avoid the impact of ions
• Use products that are resistant to certain chemical properties

Appearance
The surface has been cut and spiral marks.

Causes

• Irregular mold line or uneven surface
• No proper lubrication during installation
• Tight grooves
• Installation of grooves that move in parallel
• Poor quality or low hardness
• Poor installation skills of the technician

Solution

• Correct installation, lubrication, and design
• Use good quality and high hardness
• Improve technician training

Appearance
This shows that the seal cannot be completely sealed.

Causes

• Use in unsuitable grooves
• Pressure plus temperature in a high vacuum environment
• Low hardness or high plasticity
• Insufficient processing time

Solution

• Avoid using seals with high plasticity
• Be careful not to buy overly expensive products
• Ensure proper size in the groove to avoid gas leakage
• Correctly calculate the ratio of temperature to pressure
• Choose the right material

Appearance
The surface is bursting and sticking to the workpiece due to the high temperature.

Causes

• In an overheated environment
• The surface is too smooth

Solution

• Use thermally stable
• Select seals with matte surfaces

Appearance
Contaminants appear on the surface or along the raw edge.

Causes

• Poor processing environment, raw materials, personnel, etc. …….
• Mold is not maintained and cleaned on time
• Aging or deterioration of the artificial rubber

Solution

• Specify the level of contaminants on the package, including manufacturing and packaging.
• Molds should not be mixed according to the production rubber material.

Appearance
The surface has a flat cross-section.

Causes

• Excessive compression
• Rapidly rising or falling temperatures
• Poor quality and sloppy manufacturing processes
• Seals that cut corners on materials

Solution

• Switch to a higher degree of compression distortion
• Increase the hardness of the O-ring
• Ensure quality