Skip to Primary Navigation Skip to Site Navigation Skip to Main Content All 3M.com Site Map
3M™ Scotch-Weld™ Structural Void Filling Compounds EC-3550 B/A FST and EC-3555 B/A FST are advanced technology materials developed to help cut production costs and time, reduce part weight and comply with safety regulations governing aircraft interiors.

3M™ Scotch-Weld™ Low Density Void Filling Compounds

Save time and costs with these lightweight, extrudable and pumpable potting compounds for aircraft interiors.

3M™ Scotch-Weld™ Structural Void Filling Compounds EC-3550 B/A FST and EC-3555 B/A FST are advanced technology epoxy adhesive materials developed to help cut production time and costs, reduce part weight and comply with safety regulations governing aircraft interiors.

These compounds have a combination of features that allow for fast, direct application to the honeycomb core panel for edge-filling, void filling and reinforcement. Scotch-Weld Low Density Void Fillers are fast-cure, non-brittle and non-sag for easier handling and will resist chip-outs and breakouts.

  • Low Density
  • Extrudable and Pumpable
  • Stand Alone FR/FST Compliance
  • Non-halogenated, antimony free
Save time and costs with these lightweight, extrudable and pumpable filling compounds for aircraft interiors.

3M™ Scotch-Weld™ Structural Void Filling Compounds

Property

EC-3550 B/A FST

EC-3555 B/A FST

Density

.58 gm/cm3

.58 gm/cm3

Cure-Time to Handling

8-12 hours

4-5 hours

Work Life

120 min. @ 73°F (23°C)

60 min. @ 73°F (23°C)

Pneumatic Dispensing

Yes

Yes

Automated Pumping

Yes

Yes

Service Temperature
 

-65°F to 212°F
(-55°C to 100°C)

-65°F to 212°F
(-55°C to 100°C)

Stand-Alone Fire, Smoke, Toxicity Compliance

Yes
 

Yes
 

Bromide/Antimony Free

Yes

Yes

See how Scotch-Weld Low Density Void Fillers can speed up your process for edge-fill, void fill and honeycomb reinforcement.

This information will be used solely by the 3M Aerospace department to communicate via your request on these products, it will not be shared outside 3M Aerospace.

We reserve the right to fulfill requests as deemed appropriate.

Required fields are indicated by an asterisk (*).

*
Please send a sample to me.
I would like to have a sales rep provide product demo.
 
We will only use this information to respond to your request and as further described in our Privacy Policy.

This information will be used solely by the 3M Aerospace department to communicate via your request on these products, it will not be shared outside 3M Aerospace.

Required fields are indicated by an asterisk (*).

*Preferred Method of Contact
Email
Phone
Regular Mail
 
We will only use this information to respond to your request and as further described in our Privacy Policy.

To buy direct from 3M call 1-800-235-2376.

Where to Buy

The following distributors are authorized to sell 3M™ Scotch-Weld™ Low Density Void Filling Compounds.

Graco Supply Company

Graco Supply Company
Fort Worth, TX 76105-1798
Phone: (817) 535-3200

Graco Supply Company
Wichita, KS 67213
Phone: (316) 943-4200
Website: www.gracosupply.com

Products
All Aerospace Adhesives

Authorized

Net MRO

Net MRO
Miami, FL 33172
Phone: (305) 717-6577
Website: www.netmro.com

Products
All Aerospace Adhesives

Authorized

Pacific Coast Composites

Pacific Coast Composites
Lakewood, WA 98499
Phone: (253) 572-6262
Website: www.pccomposites.com

Products
All Aerospace Adhesives

Authorized

Authorized for Repackaging

VMS Aircraft Co.

VMS Aircraft Co.
San Diego, CA 92126
Phone: (858) 277-9500
Website: www.vmsaircraft.com

Products
All Aerospace Adhesives

Authorized

Authorized for Repackaging

Critical Materials

Critical Materials
Poulsbo, WA 98370-7172
Phone: (360) 779-6310
Website: www.criticalmaterials.com

Products
All Aerospace Adhesives

Authorized

Authorized for Repackaging

EV Roberts

EV Roberts
Carson, CA 90746
Phone: (800) 374-3872
Website: www.evroberts.com

Products
All Aerospace Adhesives

Authorized

Heatcon Composite Systems

Heatcon Composite Systems
Seattle, WA 98188-7610
Phone: (206) 575-1333
Website: www.heatcon.com

Products
All Aerospace Adhesives

Authorized

Authorized for Repackaging

Interturbine Inc, a Division of B/E Aerospace

Interturbine Inc, a Division of B/E Aerospace
Grand Prairie, TX 75050
Phone: (817) 633-8377
Website: www.interturbine.com

Products
All Aerospace Adhesives

Authorized

Aviall, Inc.

Aviall, Inc.
Dallas, TX 75261-9048
Phone: 1-800-AVIALL-1 or
(1-800- 284- 2551)
Website: www.aviall.com

Products
All Room Temp Products

 

PRC DeSoto/PPG

PRC DeSoto/PPG
Woodinville, WA 98072
Phone: (425) 483-3999
Website: www.ppgaerospace.com

Products
All Room Temp Products

 

RS Hughes

RS Hughes
Phone: 877-774-8443 or 877-RSHUGHES
Website: www.rshughes.com

Kent, WA 98032
Phone: (206) 767-4463

Anaheim, CA 92805
Phone: (714) 781-5730

Dallas, TX 75220
Phone: (214) 351-2300

Addison, IL 60101
Phone: (630) 629-6939

Marietta, GA 30062
Phone: (770) 971-0185

Woodlawn, MD 21244
Phone: (443) 893-7767

Products
All Room Temp Products