Features
- Non-Corrosive, Electronic Grade
- Heat & Cold Resistant
- Excellent Electrical Properties
- Long-Lasting Durability
- Resistant To Some Chemicals
- Good Stress Relieving Properties
- Excellent For Bonding, Sealing, or Encapsulating
- Advanced Adhesion To Various Substrates
Benefits
- 100% Silicone
- Broad Adhesion Range/Bonds to Common Substrates
- Chemical Resistant
- Color Stable
- Compatible with Electronics
- Excellent for Encapsulating/Sealing/Coating
- High Temperature Resistance
- Highly Flexibile/Allows for Movement
- Long Life
- Low Odor
- Low Temperature Resistance
- Moisture Curing
- Mold and Mildew Resistant
- Non-Melting
- Non-Slump – Overhead/Vertical Applications
- Non-Yellowing
- One-Component
- RTV
- Self-Leveling
- Solvent-Free
- UV Resistant/Degredation
- VOC Compliant
- Water Repellant
- Weather Resistant
- Will Not Crack
- Withstands Extreme Temperatures
Properties
- *Intermittent temperature up to 450°F. Strength will start to develop immediately and continue increasing for 7 days after application. ASI recommends testing strength and adhesion on the 7th day. ASI 388 suggested application temperature range: -35°F to 150°F. Testing should be done to confirm temperature requirements are met. Information on this data sheet can change without notice and it is therefore not recommended that these figures be used in spec writing. If you have any questions contact manufacturer‘s sales and technical service department.
Substrates
- Glass
- Most Metals
- Most Fiberglass
- Most Wood Types
- Aluminum
- Porous Surfaces
- Vinyl
- Rubber
- Natural & Synthetic Fiber
- Most Painted Surfaces
- Some Plastics
Downloads
Certifications

- UL Recognized
- VOC Compliant (21 grams/liter ASTM D2369)
- Meets the requirements of MIL 46106B Type 1
Additional information
ADDITIONAL COMMON APPLICATIONS
- Sealing Lead Wire Entries
- Waterproofing Electronics
- Component Mounting
- Covering Sensitive Components
- Sealing Electronic Assemblies
- Adhering Electronics
- Sealing/Bonding Electronics
- Circuit Board Protection
- Electronic Encapsulating
- Electrical Connections
- Telecommunications Including Coaxial Cable Connectors, Etc.
- Engine Components
- General Industrial Applications
Available Packaging
Notes
ASI 388 is stocked in cartridges, 2.8 oz. squeeze tubes, pails and drums. Additional packaging may be available upon request. Inquire to ASI sales staff for additional information.
Related Products

20-2362FR
Fire Retardant Urethane
Flame retardant, UL 94 V-0 listed urethane. Low viscosity and low Tg makes this product ideal for cushioning and protecting sensitive electronics. UL File Number E235584.

EPO-TEK® EK1000
Electrically Conductive Silver Filled Adhesive
High thermal conductive silver filled adhesive.

ASI 5900
Fast Grab Adhesive
ASI 5900 Fast Grab Hybrid Adhesive uses ASI’s innovative hybrid technology to develop immediate green strength to fixture substrates while the adhesive cures and provides a long-term, durable bond. ASI 5900 is 100% solids.It will not shrink and...

Hot Melt Adhesives
Evans Adhesive's hot melt adhesives provide fast-setting, durable bonds for packaging and converting industries, offering reliable performance, efficient application, and strong adhesion to meet the demands of high-volume production environments.

ASI 57
Hybrid Polymer Sealant and Adhesive
ASI 57 Hybrid Class 50 Hybrid Sealant and Adhesive is a one-part, low odor, no-sag polyether sealant that uses ASI’s innovative hybrid technology to produce a material that is ideal for a wide range of applications where a...

60-7185RCL
UV Curable Urethane Acrylate
Low viscosity, clear UV aliphatic urethane acrylate for bonding, coating, or encapsulating.
20-2362FR
Fire Retardant Urethane
Flame retardant, UL 94 V-0 listed urethane. Low viscosity and low Tg makes this product ideal for cushioning and protecting sensitive electronics. UL File Number E235584.
EPO-TEK® EK1000
Electrically Conductive Silver Filled Adhesive
High thermal conductive silver filled adhesive.
ASI 5900
Fast Grab Adhesive
ASI 5900 Fast Grab Hybrid Adhesive uses ASI’s innovative hybrid technology to develop immediate green strength to fixture substrates while the adhesive cures and provides a long-term, durable bond. ASI 5900 is 100% solids.It will not shrink and...
Hot Melt Adhesives
Evans Adhesive's hot melt adhesives provide fast-setting, durable bonds for packaging and converting industries, offering reliable performance, efficient application, and strong adhesion to meet the demands of high-volume production environments.
ASI 57
Hybrid Polymer Sealant and Adhesive
ASI 57 Hybrid Class 50 Hybrid Sealant and Adhesive is a one-part, low odor, no-sag polyether sealant that uses ASI’s innovative hybrid technology to produce a material that is ideal for a wide range of applications where a...


Get in touch to learn more
Speak to us on 800-325-7040
Contact us

















