The ideal sealant solution for:
Trucks & Trailers
Concrete Building Joints
Windows & Doors
Sunrooms & Greenhouses
Mobile Homes & Campers
... and hundreds more!
Download the UST
Download the UST
This preformed expanding tape seal features a major breakthrough in
sealant technology. EMSEAL UST Sealant Tape is composed of a
cellular-modified acrylic adhesive material never before available
in a sealant tape infused into a cellular foam base. This creates
sealing performance significantly greater than any earlier impregnated
In addition, it is odorless, clean
handling, UV stable, non-staining, and highly versatile.
• Clean handling, non-staining, odorless, UV-stable
• Resistant to bugs and vermin
• Will not extrude from between joints like caulk or butyl tapes
• Conforms to contours and fills gaps
• Maintains a seal during thermal expansion and contraction
• Does not dry out
• Compatible with and adheres to most wet sealants
• No shrinkage or blow-out due to closed-cell breakage
• User friendly – no masking, mixing, priming, tooling, curing or
UST tape compresses without overspill and expands to fill voids.
|Available in a wide variety of
configurations, users determine the size of MST suited to their specific applications and performance needs.
A Wide Range of Uses:
UST sealant tape can be used to seal out moisture, dust, air,
wind-driven snow, between metal surfaces, concrete, plastic, wood and
other substrates. UST is ideal as a filler in expansion/compression
joints subject to movement from thermal expansion and contraction, and
as a gasket in mechanically fastened, non-moving applications.
Water, vapor, air, sound and dust seal
Applications requiring high temperature stability.
Ideal as a gasket tightly squeezed between
joint faces that are mechanically fastened together such as lap seams.
Filling preformed openings between
components and where joint opening size varies due to seasonal
In applications where damping vibration
and noise is as important as weather sealing.
Sealing between the UST and the
substrates is a result of the foam's cell structure, the impregnation,
and the appropriate degree of compression. EMSEAL UST is packaged
precompressed in rolls. The material contains a pressure sensitive
mounting-adhesive on one face to facilitate installation.
UST is made of resilient cellular foam infused with a hydrophobic
modified-acrylic, liquid adhesive sealant which is then compressed to a
sealing density level appropriate to the application. The result is a
hybrid sealant featuring the best characteristics of foam and liquid
sealants while eliminating their weaknesses. UST replaces and
outperforms liquid and butyl tape sealants, closed-cell and
unimpregnated open-cell foam closures.
UST is available in a wide variety of
configurations. Simply determine the size of UST suited to the specific
application and performance needs. Typically, higher compression levels
are required for watertightness in standing water or water run-off;
lower compression can be used for temperature and sound barriers or
other fill-in applications. (see compression chart).
1. Storage and Surface Preparation
Tape should be stored in a warm dry interior location. Ideal
application temperature is approx. 75°F (24°C). Expansion will be faster
at higher temperatures and slower at lower temperatures.
Tip: For faster expansion in cold conditions keep the material warm
before use and, if desired, apply heat from a hair dryer to installed
material to accelerate expansion. Joint faces should be dry and cleaned
of dirt, oils, grease, etc. There should exist sufficient depth to
receive full width of the sealant.
IMPORTANT: Reels must be stored FLAT and kept compact. Should material
expand in package it can still be used. Unroll material, allow it to
expand, then recompress it between surfaces to be sealed.
|2. Opening Reels
Only open materials that will be immediately used. Remove shrink wrap.
Cut in front of colored marking tape and pull back
release liner to expose mounting adhesive.
|3. Square Off Ends
Start and finish ends must be cut
square. For easier cutting spray knife or scissors with mist of water.
|4. Peel Off Liner
Remove release liner to expose adhesive face of tape.
|5. Adhere to Surfaces
Press adhesive face to one surface. Align other surface with tape.
Secure surfaces together. Tip: If needed, cut and fit small filler
pieces of tape to fill panel corrugation or voids.
6. Joining Lengths
Work in one direction towards the previously installed
length or end of joint. Do not stretch material.
Leave the end to be joined to the previous length sticking proud of the
joint. Push the joining faces together. Push hard on the foam length to
compress joins firmly together. Ensure there are no voids at joins.
Once the full length is installed, push the protruding
join into the joint.
Available in many sizes.
If this tape size does not return the results you desire in your
specific application, ask your vendor for other size options.
• UST will not adhere to components that are dirty or dust-covered or to
surfaces coated with oils or other release agents.
• UST will expand to follow and fill irregular substrates within reason.
Sharp corners and acute angles may need to be filled with additional
filler pieces of UST in order to ensure a proper seal.
• Substrate must be capable of resisting, without deflection,
approximately 1.5 to 2.5 lb/in2 (10 to 17 kPa) back pressure from the
Standard and Custom Sizes
EMSEAL products are available in numerous standard and custom
configurations and are available for shipment internationally. The
product range is continually being developed. EMSEAL reserves the right
to modify or withdraw any product without prior notice.
Download the UST