Will this epoxy work on plastic fuel tanks?

Yes, absolutely. We've used it on pressurized fuel tanks too. Fixed punctures, even cracked threaded connection collars. This is the best epoxy we've ever seen. The key is all in the prep work, using 80 grit as instructed. Once the plastic is sanded and prepped, for added strength it advises "curing" the plastic before applying epoxy by heating that sanded plastic area with a torch (flame). Clearly this step can be dangerous, do only if it's an empty aired out tank. Otherwise skip this step. Prep, prep, prep is the key.

does it work with wood?

Yes, but the regular epoxy works very well with wood and is less expensive. I bonded plastic to wood with this.

Will this epoxy work on cement steps

Not sure how you're proposing to use it exactly, but it's a great product and will work on virtually anything.

What type of prep work is needed if i'm using this on a scepter water jug? light sanding? i'm trying to glue an abs 6x12" plate to it the jug.

Sanding for "Tooth" and then a "Degreasing " on Both Items (jug & base) I use denatured alcohol. I'd lay the Jug Base down into the Gflex and let simple gravity do the joining. Hope this helps

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West System 655-8 G/flex Epoxy Adhesive, two 4.5 fl oz., White

Product ID: 28713903

Details

Brand
West System
Item Form
Liquid
Material
epoxy
Special Feature
Waterproof
Specific Uses For Product
Repair

⏳46 min pot life, 24 hr full cure

💧Waterproof & bonds damp surfaces

🛠️150,000 PSI tensile strength

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Description

🛠️ Bond like a pro, fix like a boss!

VERSATILE BONDING - Bonds metals, plastics, fiberglass & even damp woods effortlessly
EXTENDED WORK TIME - 60-75 minutes open time lets you perfect every application
FLEXIBLE YET TOUGH - More flexible than standard epoxies but stiffer than sealants for durable bonds
UNMATCHED STRENGTH - Withstands expansion, shock & vibration for lasting repairs
WATERPROOF PERFORMANCE - Ideal for underwater and wet surface repairs without compromise

West System 655-8 G/flex Epoxy Adhesive is a high-strength, waterproof two-part epoxy designed for permanent bonding of hard-to-bond materials including damp woods, metals, plastics, and fiberglass. Offering a 46-minute pot life and full cure in 24 hours, it delivers flexible yet tough structural bonds that absorb stress from expansion, shock, and vibration—perfect for demanding repairs on boats, kayaks, and industrial applications.

Specifications

ASIN	B00LWKFZJ8
Best Sellers Rank	#11,103 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #5 in Electrically Conductive Adhesives
Brand Name	West System
Color	White
Compatible Material	Plastic
Container Type	Tube
Customer Reviews	4.7 4.7 out of 5 stars (630)
Full Cure Time	24 Hours
Global Trade Identification Number	00811343014759
Included Components	EMW1832294
Item Form	Liquid
Item Package Quantity	1
Item Type Name	Industrial Fluid Adhesives & Sealants
Manufacturer	West Systems
Material Type	epoxy
Model	655-8
Number of Pieces	2
Other Special Features of the Product	Waterproof
Part Number	655-8
Specific Uses For Product	Repair, Woodworking
Tensile Strength	150000 Pounds Per Square Inch
UPC	811343014759
Unit Count	9.0 Fluid Ounces
Viscosity Level	High
Volume	9 Fluid Ounces
Warranty Description	EMW1832294
Water Resistance Level	Waterproof

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