Technical Specifications

LOCTITE® Extreme Glue
Page 3 of 4
Revision: June 1, 2020
Supersedes: NEW
Ref. #: 677646
Technical Data Sheet
STORAGE & DISPOSAL
LABEL PRECAUTIONS
DISCLAIMER
Loctite® Extreme Glue cures by absorbing moisture into the bond line from the ambient air (air humidity or water vapor) or from the substrate. If
both surfaces to be joined are non-porous (i.e. metal to metal or plastic to plastic) then they can only be glued by pre-wetting both surfaces with a
damp cloth before applying the adhesive. Avoid wetness, pooling water or water drop formation. For large surface areas make sure the moisture
film does not dry off before applying the adhesive. Absorbent surfaces are normally water-permeable and do not require pre-wetting; however,
the curing process can be considerably accelerated for both absorbent and non-absorbent substrates if the surfaces are pre-wetted by wiping the
areas to be glued with a damp cloth before applying the adhesive. The adhesive can be applied to damp surfaces. The adhesive will reach its
maximum strength after it has fully cured, and the substrates have fully dried.
Once fully cured the adhesive can be painted, with water based acrylic paint, polyurethane-based varnishes, and alkyd resin varnishes. When
using alkyd resin paints drying may be delayed. It is not compatible with one component polyurethane paints.
Mirror bonding: Be very careful not to scratch or damage the back coating of the mirror. Protect surrounding areas and floors from drips, squeeze
outs etc. Apply the adhesive to the back of the mirror or the substrate using vertical beads only approximately 1/8 inch (3 mm) wide and
approximately 1 -2 inches (2.5 – 5 cm) apart. Do not place the adhesive too close to the edge to prevent squeeze out (leave approximately 1-2
inches (2.5 – 5 cm) from the edges). Within 5-8 minutes place firmly up against the wall and tape in place until cured. Support the bottom of the
mirror to prevent slippage until the adhesive cures. For mirrors larger than 1 square foot (0.09 m
2
), this product must be used with a permanent
support system. Place mirror into support channels or hangers and press in place within 5-8 minutes. Tape or brace the top of the mirror until the
adhesive has set at least 48 hours. For non-porous surfaces longer curing time will be required. Do not try to reposition the mirror once in place.
If sealing the edges wait a minimum of 7 days. Curing time will depend on temperature, humidity, type of substrate and amount of air that can
reach the adhesive.
Clean-up
Clean tools and adhesive residue immediately after use with alcohol, acetone or cleaner’s naphtha. Follow manufacturer’s precautions for use and
hazards. Cured sealant may be carefully cut away with a sharp-edged tool. Cured adhesive cannot be removed from clothing and is not soluble
in any solvent
Store above freezing in a cool and dry place. Avoid direct sunlight. Close the tube tightly immediately after each use. Exposure to high humidity
during storage will reduce shelf life. Exposure to high temperatures during storage (> 122°F, 50°C) will cause the product to yellow in the bottle.
To dispose of unwanted product, squeeze out remaining material, allow to dry and discard with domestic waste. Dispose of non-hardened product
residues according to the applicable local regulations. Large product amounts must be disposed of separately. The empty packaging can be
recycled.
The information and recommendations contained herein are based on our research and are believed to be accurate, but no warranty, express or
implied, is made or should be inferred. Henkel recommends purchasers/users should test the products to determine acceptable quality and
suitability for the intended use. All adhesive/sealant applications should be tested under simulated or actual end use conditions to ensure the
adhesive/sealant meets or exceeds all required project specifications. Since assembly conditions may be critical to adhesive/sealant performance,
it is also recommended that testing be performed on specimens assembled under simulated or actual production conditions. Nothing contained
herein shall be construed to imply the nonexistence of any relevant patents or to constitute a permission, inducement or recommendation to practice
any invention covered by any patent, without authority from the owner of the patent.
WARNING! COMBUSTIBLE. MAY CAUSE SKIN AND EYE IRRITATION. Contains trimethoxysilanes. May be harmful if inhaled
or swallowed. Methanol is released during application and cure, which may affect the nervous system causing dizziness, headache
or nausea. Keep away from heat, sparks, and flame. Use in a well-ventilated area. Do not breathe vapors. Avoid contact with eye,
skin, and clothing. Prolonged or repeated skin contact may cause dermatitis and sensitization. Wash hands after using. Wear gloves
when applying product.
FIRST AID: For eye contact flush with water for 15 minutes. Call a physician if irritation develops and persists. For skin contact,
wash with soap and water. If affected by inhalation, remove to fresh air and get medical attention. If ingested, do not induce vomiting.
Call a physician or Poison Control Center immediately. DO NOT TAKE INTERNALLY. KEEP OUT OF REACH OF CHILDREN.
WARNING: Cancer and Reproductive Harm – www.P65Warnings.ca.gov
Refer to the Safety Data Sheet (SDS) for further information.