Problems with gorilla glue

Written by fern fischer
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Original Gorilla Glue was introduced to the American market in the late 1990s. The glue was discovered being used on teak furniture in Indonesian manufacturing. It was superior to glues available in the United States at the time and was developed as a product suitable for the U.S. market.

To meet the broad range of glue needs in the U.S. market, the family-owned Gorilla Glue Company has developed several products for specific uses. The product line includes Gorilla Wood Glue, Gorilla Epoxy, Gorilla Super Glue and Gorilla Tape.

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Ingredients

Original Gorilla Glue is a polyurethane-based glue, which means that it contains volatile and toxic compounds similar to those in any brand of polyurethane-based product. The urethane prepolymer is a trade secret chemical compound and comprises 40 to 50 per cent of Gorilla Glue. Polymeric MDI makes up the remaining 50 to 60 per cent and is a mixture of 4,4'- Diphenylmethane-diisocyanate, isomers and homologues.

Uses

Original Gorilla Glue is known for its ability to bond dissimilar surfaces. It is permanent for indoor or outdoor use. When cured it can easily be sanded and painted or stained. Gorilla Glue begins curing when it contacts moisture, and wetting the surfaces to be joined helps make a tight, permanent bond.

Although it can be used on most surfaces, including metal, stone, wood, ceramics, foam, glass and more, Gorilla Glue has found special favour with woodworkers. Because it is waterproof, it creates a strong bond on outdoor wooden projects that will last season after season. Well-made joints and clamping is required, as with any wood glue.

The moisture in pressure-treated lumber has always presented gluing problems. The same moisture is actually a benefit when using Gorilla Glue, because moisture speeds the cure process.

Problems

Gorilla Glue contains toxic ingredients that give off vapours that should not be inhaled. Gorilla Glue is flammable. If it combusts, dangerous chemical conditions may occur.

Users report problems with Gorilla Glue drying in the bottle after a single use or a few uses. This is due to the nature of the glue, which begins curing with even slight moisture from the air and exposure to the air.

Pets have been known to ingest Gorilla Glue with disastrous results. Because moisture initiates the bonding and curing process, ingested glue will foam and swell inside the animal and harden. It usually cannot be removed and is fatal. The glue is reported to taste like peanuts and maple syrup and is attractive to dogs and cats.

Solutions

Keep Gorilla Glue away from fire or flame. If Gorilla Glue is in the vicinity of a fire, spraying water on it will cause the foaming action of the glue cure to begin, and it will swell. Dangerous compounds may occur from heat, including isocyanate vapour. Fire-extinguishing media should be carbon dioxide, dry powder or foam.

After Gorilla Glue thickens in the bottle, it cannot be thinned. Air trapped inside the bottle will cause the premature curing to begin. You can avoid this by setting the bottle upright after use, allowing the glue to run back out of the spout. Then gently squeeze the bottle until the level of the glue reaches the tip of the spout. Cap tightly. Without air and moisture in the bottle, the glue should stay fresh and usable. Store the bottle upside down, and any trapped air will harden the bottom layer instead of glue near the spout.

If Gorilla Glue gets on your skin, the company recommends first using dry paper or cloth to remove it, then soap and cold water and then apply skin lotion. Do not use solvents that will strip the oils from your skin and make the glue adhere more. A pumice stone will gently sand away dried bits of the glue from skin.

Prevention

Keep Gorilla Glue sealed and out of the reach of children and pets.

Some user blogs suggest heating the glue to thin it, but the company advises against this. The cure process cannot be reversed, and heating presents fire and fume hazards.

Use only in well-ventilated areas. Wear goggles, rubber gloves and old clothes.

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