Accessories / Adhesives

GenSplice Seam Adhesive

Used for splicing EPDM membranes and flashings, this solvent-based contact adhesive is engineered for fully adhered, mechanically attached, and ballasted roofing systems.

Acceptable Systems:

EPDM

Overview | Options | Documents

Overview

GenFlex^™ GenSplice Seam Adhesive is a high-strength, solvent-based contact adhesive specifically formulated for seaming GenFlex^™ EPDM membranes and flashings. Designed for use across fully adhered, mechanically attached, and ballasted roofing systems, it provides reliable, long-term bonding performance under a variety of installation conditions. The adhesive delivers excellent tack, uniform coverage, and superior seam strength, ensuring durable watertight joints that maintain flexibility and integrity over time. Ideal for both new construction and re-roofing applications, GenFlex GenSplice Seam Adhesive helps create strong, lasting seams that protect the roof system from moisture intrusion.

Options

Size	Weight	Packaging	Product Description	UOM	Item Code
Size (4) 1 gallon pails/carton (3.8 L/pail)	Weight 8 lb/pail (3.6 kg/pail)	Packaging 150 lin ft/gal (45.7 m/3.8 L)	Product Description GenSplice Seam Adhesive - 1-gal 1	UOM CAR	Item Code W590010148

Documents

Document	Action
PDS 840 GENFLEX GENSPLICE SEAM ADHESIVE	Download View

No documents found.

Document	Action
SDS - GenFlex GenSplice - Firestone BP (GenFlex) - W590010148 - CAN-FR
SDS - GenFlex GenSplice - Firestone BP (GenFlex) - W590010148 - MEX-ES
SDS - GenFlex GenSplice - Firestone BP (GenFlex) - W590010148 - USA-EN

*See the SDS Portal for additional languages.

No videos found.

Sample Warranties

Title	Link
Commercial Building Membrane Limited Warranty (Tear-Off Warranty)_Distributors_2021	Download View
GenFlex Domestic Warranty Pricing Guide 2025	Download View
GenFlex Lifetime Residential Material Limited Warranty	Download View
GF-Limited Membrane Only-10-20-Yrs-SAMPLE	Download View
Paint Finish Warranty – 35 Yrs – SAMPLE 2008	Download View
Roofing System Limited Warranty – 5-20 years – 100 MPH – CP – SAMPLE 2003	Download View
Roofing System Limited Warranty – 5-20 years – 100 MPH – Hail – CP – SAMPLE 2003	Download View
Roofing System Limited Warranty – 5-20 years – 100 MPH – Hail – SAMPLE 2003	Download View
Roofing System Limited Warranty – 5-20 years – 100 MPH – SAMPLE 2003	Download View
Roofing System Limited Warranty – 5-20 years – 55 MPH – CP – SAMPLE 2003	Download View
Roofing System Limited Warranty – 5-20 years – 55 MPH – Hail – CP – SAMPLE 2003	Download View
Roofing System Limited Warranty – 5-20 years – 55 MPH – Hail – SAMPLE 2003	Download View
Roofing System Limited Warranty – 5-20 years – 55 MPH – SAMPLE 2003	Download View
Roofing System Limited Warranty – 5-20 years – 72 MPH – CP – SAMPLE 2003	Download View
Roofing System Limited Warranty – 5-20 years – 72 MPH – Hail – CP – SAMPLE 2003	Download View
Roofing System Limited Warranty – 5-20 years – 72 MPH – Hail – SAMPLE 2003	Download View
Roofing System Limited Warranty – 5-20 years – 72 MPH – SAMPLE 2003	Download View
Roofing System Limited Warranty – 5-20 years – 80 MPH – CP – SAMPLE 2003	Download View
Roofing System Limited Warranty – 5-20 years – 80 MPH – Hail – CP – SAMPLE 2003	Download View
Roofing System Limited Warranty – 5-20 years – 80 MPH – Hail – SAMPLE 2003	Download View
Roofing System Limited Warranty – 5-20 years – 80 MPH – SAMPLE 2003	Download View
Roofing System Limited Warranty – 5-20 years – 90 MPH – CP – SAMPLE 2003	Download View
Roofing System Limited Warranty – 5-20 years – 90 MPH – Hail – CP – SAMPLE 2003	Download View
Roofing System Limited Warranty – 5-20 years – 90 MPH – Hail – SAMPLE 2003	Download View
Roofing System Limited Warranty – 5-20 years – 90 MPH – SAMPLE 2003	Download View

GenSplice Seam Adhesive

Overview

Options

Documents

Videos

Sample Warranties