'Gorilla 4330101' is discontinued and no inventory now remains.

Product Description

Gorilla GorillaWeld Epoxy is an incredibly strong, heavy-duty two-part adhesive. The package includes one 0.5 fl.oz. tube of hardener and one 0.5 fl.oz. tube of resin that is mixed together and applied, per the directions. The tough, steel bond epoxy formula has a 4250 PSI bond strength and sets in just 10 minutes. GorillaWeld is waterproof and versatile, creating a long-lasting, permanent bond to metal, plastics*, concrete, ceramics, PVC, fiberglass and more.

GorillaWeld is freeze/thaw stable, paintable, and sandable for all of your DIY projects at home or at work. This product does not expand when cured, has limited chemical resistance, and cures to a dark grey color. Fill gaps, drill and shape GorillaWeld to virtually any surface or product.

*Note: GorillaWeld Epoxy is not recommended for use on polyethylene, polypropylene or similar plastics. Bonded wood materials should not be submerged or soaked in water.

Features and Benefits

  • Extrememly strong - 4250 psi
  • Steel bond epoxy
  • Sets in 10 minutes creating a permanent bond
  • Waterproof (Not suggested to use on wood materials submerged or soaked in water)
  • Easy to use


All surfaces should be clean and free of debris. To improve adhesion, roughen smooth surfaces with sandpaper before gluing.

  1. Remove cap from each tube and use top of cap to puncture foil seal.
  2. Dispense equal parts from each tube onto a clean, disposable surface.
  3. Mix with disposable mixing tool for approximately 20 seconds until color is uniform.
  4. Apply mixture to surface within 3 minutes.
  5. Clamp surfaces together and leave undisturbed for 10 to 30 minutes. Full cure in 24 hours. Cure time dependent on temperature, humidity and quantity applied.
Country of Origin: United States.


Technical Information

Gorilla GorillaWeld Epoxy (4330101)
  • Adhesive: Dark Grey   How are adhesives different?
  • Service/Operating Temperature: -40°F to 300°F
  • Application Temperature: 32°F to 90°F
  • Country of Origin: United States
Note: Specifications are those given by manufacturers and are not tested for accuracy.

Download Datasheets

The following downloads are available for this product:

Download Safety Data Sheet - HardenerDownload Safety Data Sheet - Resin

Question & Answers

User Reviews

Made in the USA
hot melt rubber (synthetic)
Offers the widest range of application flexibility available. Exhibits excellent processing performance whether manually or automatically applied. Has superior tensile strength, adhesion properties and holding force which ensures consistent, reliable seals. Hot melt adhesive will bond faster to a surface which is referred to as quick-grab or quick-stick. It typically has higher tack (will feel stickier to the touch), but is also softer. It has lower heat resistance, shear resistance, and sometimes UV resistance than an acrylic adhesive. NOTE: it is called hot melt because the adhesive is applied hot by the manufacturer and then hardens as it cools (you do not need to apply heat to the tape yourself).
natural rubber
Properties are similar to that of hot melt rubber, but natural rubber often holds where other adhesives won't (recycled fibers, dust, cold, heat and heavy loads). It provides good overall adhesion and moisture resistance.
Offer excellent performance, especially for applications in temperatures less than 40°F and greater then 120°F. It provides excellent clarity, has high shear strength, is usually more permanent/durable even when exposed to moisture, and it ages well over extended periods in fluorescent and sunlight. Since it remains clear for the life of the application and does not yellow over time it is ideal for applications such as sealing white cartons. While it has good initial adhesion it does take 24-48 hours to cure and to achieve its maximum bond strength (has gradual adhesion buildup). Another difference between hot melt rubber and acrylic adhesive is if you fold tape over making the two adhesive sides touch the acrylic adhesive will remain attached to the carrier (e.g. paper, film) while a hot melt adhesive will stick to itself and pull off of the carrier. It is the best choice for clarity, UV resistance and aging characteristics.
Is great for extreme temperature applications since silicone adhesive can work in continuous operating temperatures from -100°F to 500°F. They also exhibit good chemical resistance, retain electrical properties, and remove cleanly with little or no residue.
zinc oxide
Zinc oxide based adhesive formula is a skin-friendly adhesive which is commonly used on sports medicine tapes.
Thickness, AKA caliper or gauge, refers to the distance from one surface of a tape backing, or adhesive, to the other.
1 mil = 1/1000 of an inch
Examples: 1/16 inch = 62.5 mils; 1/32 inch = 31.25 mils
The cut level indicates how many grams of cutting load a glove can withstand from a sharp blade before being penetrated.
Lower gauge gloves are heavier - have thicker construction, fewer stiches knitted per inch and offer less dexterity.
Higher gauge gloves are lighter - have thinner/finer construction, more stitches knitted per inch and offer more dexterity.
Gloves offered typically runs from 7 to 18 (12 and 13 are in the middle of the scale).
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