WELD-ON 4807 is formulated to form high strength bonds in joining general purpose and high impact types of
WELD-ON 4807 is recommended as a general usage for styrene where a bodied cement is desired. It is suitable
for a wide variety of applications. It may be used on both large and small assemblies, large displays, signs,
lighting fixtures, housewares, large and small containers, toys, electrical or electronic assemblies, decorator
Weld-On 4807 is a milky, medium bodied, fast drying solvent type cement. It forms high strength bonds in joining
general purpose and high impact types of styrene. It forms a high strength, rigid bond. Chemical, physical, and
electrical properties are similar to those of high impact styrene. Cure is affected by dissipation of the solvent from
the cement and surrounding parts softened by it. Initial bond will usually take place within minutes and may be of
sufficient strength for handling. Bond strength will be considerable in a few hours and will reach high strength in
24 to 72 hours. Thereafter, strength will continue to increase gradually for some weeks.
SUBSTRATE MATERIAL 2 Hours 24 Hours 1 Week
Styrene 300 PSI 1000 PSI 1800 PSI
ADHESIVE PROPERTIES AND CHARACTERISTICS
VISCOSITY: 720 cps
WORKING TIME: 10 – 15 minutes
FIXTURE TIME: 20 minutes
80% STRENGTH: 72 hours
SPECIFIC GRAVITY: .878 ± .040
COVERAGE: 10mil: 32 sq. ft/Pint 260sq. ft/Gallon
20mil: 16 sq. ft/Pint 130sq. ft/Gallon
DIRECTIONS FOR USE
• JOINT PREPARATION: Parts to be joined should fit without forcing. Surfaces should be clean and smooth. A
good machine finish or sanding with 200-400 grit sandpaper should be satisfactory. Surfaces “as molded or
extruded” should not require additional preparation.
• APPLICATION OF CEMENT: Weld-On 4807 can be applied by brush, spray, roller coating, pump-type oil cans,
polyethylene squeeze bottles and other devices. Cement may be applied to one or both surfaces.
• ASSEMBLY OF PARTS: Assemble while parts are still wet. If cement is applied to one surface, let the two
surfaces be in gentle contact for a few seconds to allow the cement to soften the dry surface. Then press parts
together in firm contact. If both of the parts have been coated, they may be brought firmly together immediately.
The application of pressure of 2 to 10 lbs per square inch should materially increase bond strength. Spring-loaded
clothespins may be very suitable as clamps. The length of time required for clamp or jig pressure will
vary. A few hours or more may be needed for difficult joints, but only a few minutes for parts that fit well and
have modest load requirements.
Three years expectancy in tightly sealed containers. Stability of the product is limited by the permanence of the
container and the evaporation of the solvent when container is open. Evaporation of solvent will cause the cement
to thicken and reduce its effectiveness.
Shipping Information for Individual Containers Larger Than One Liter: DOT Shipping Name: Adhesive. DOT
Hazard Class: 3. ID #: UN1133. Packaging Group: II. Label: Flammable Liquid.
Shipping Information for Less than One Liter: DOT Shipping Name: Consumer Commodity. DOT Shipping
SAFETY AND ENVIRONMENTAL PRECAUTIONS
Weld-On 4807 is a flammable solvent cement. It is considered a hazardous material. In confo
rmance with the Federal Hazardous Substances Labeling Act, the following hazards and precautions are given.
Purchasers who may re-package this product must also conform to all local, state and federal labeling, safety and
CAUTION! - FLAMMABLE - VAPOR HARMFUL - MAY BE
HARMFUL IF SWALLOWED - MAY IRRITATE SKIN OR EYES
Keep out of reach of children. Do not take internally. Keep away from heat, spark, open flame and other sources
of ignition. Vapors may ignite explosively. Keep container closed when not in use. Store in the shade below 80°F.
Avoid breathing of vapors. Use only in well ventilated area. If confined or partially enclosed, use forced ventilation.
Atmospheric levels must be maintained below established exposure limit values contained in Section II of the
Material Safety Data Sheet. If airborne concentrations exceed those limits, use of a NIOSH-approved organic
vapor cartridge respirator with full face-piece is recommended. The effectiveness of an air-purifying respirator is
limited. Use it only for a single short-term exposure. For emergency and other conditions where short-term
exposure guidelines may be exceeded, use an approved positive pressure self-contained breathing apparatus.
Do not smoke, eat or drink while working with this product. Avoid contact with skin, eyes and clothing. May cause
eye injury. Protective equipment such as gloves, goggles and impervious apron should be used. Carefully read
Material Safety Data Sheet and follow all precautions. Contains Methyl Ethyl Ketone (78-93-3) and Polystyrene
Resin (9003-53-6). Do not use this product for other than intended use.
"Title III Section 313 Supplier Notification": This product contains toxic chemicals subject to the reporting
requirements of Section 313 of the Emergency Planning and Community Right-to-Know Act of 1986 and of
40CFR372. This information must be included in all MSDS’s that are copied and distributed for this material.
Inhalation: If ill effects from inhalation, remove to fresh air. If not breathing, give artificial respiration. If breathing
is difficult, give oxygen. Call physician.
Eye or Skin Contact: Flush with plenty of water for 15 minutes. If irritation persists, get medical attention.
Ingestion: If swallowed, do not induce vomiting. Contact physician immediately.
Every batch of this cement is checked to assure that consistent quality is maintained. An infrared absorption curve
is recorded for each batch to ensure that this cement is properly formulated. Samples are taken from all batches
and kept for a period of at least one year. A batch identification code is stamped on each can.
This product is intended for use by skilled individuals at their own risk. These suggestions and data are based on
information we believe to be reliable. Users should verify by test that this product, as well as these methods, are
suited to their application. Since specific use, materials and handling are not controlled by IPS, our warranty is
limited to the replacement of defective IPS products.
If you need more information on this product please click on the following link to view the manufacturer's literature page.