Home -- EMSEAL Expansion Joints and Pre Compressed Sealants

 

Avoiding Water Damage:

WATER DAMAGE could be the biggest post-production cost faced
by any recreational vehicle manufacturer.

For this reason, the
choice of sealant or sealant system for penetrations of the
vehicle skin is ultimately as important as any structural, drivetrain,
or luxury component.
Extruded or liquid-applied sealants squeeze out, are supersensitive
to temperature, inadequately fill voids within the joint,
do not follow thermal expansion and contraction changes, and do
not adequately handle jarring, vibration, and torsional body and
chassis movements.

Water damage as the result of failed trim seal.

Under compression of fasteners and flanges to at least 25% of its manufactured thickness, RVS becomes a watertight gasket which fills irregularities without extruding out.

RVS--Recreational Vehicle Sealant Tape

 

Product Innovation:
The result of a 3-year R&D project, EMSEAL RVS RV Sealant Tape features a major breakthrough in sealant technology. The innovation comes in the composition of the patent-pending acrylic adhesive infused into the cellular foam base material. This new proprietary chemistry incorporates a hydrophobic/hydrophilic component never before available in a sealant formulation.

The result is a material that features sealing performance significantly greater than any acrylic-impregnated predecessor. In addition, it is odorless, clean handling, UV stable, non-staining, and highly versatile.

Product Description:
EMSEAL RVS Sealant Tape is a preformed expanding tape seal. RVS is made of a 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 that features the best characteristics of foam and liquid sealants while eliminating their respective weaknesses. RVS compresses uniformly without overspill to provide a lasting seal.

Available in a wide variety of configurations, recreational vehicle manufacturers determine the size of RVS suited to their specific applications and performance needs.

Sealing between the RVS and body components is a result of the foam's cell structure, the impregnation, and the appropriate degree of compression. EMSEAL RVS is packaged precompressed in rolls. The material contains a pressure sensitive mounting-adhesive on one face to facilitate installation.

Uses and Applications:
RVS is an effective seal against water, vapor, air, sound, dust, allergens and vibration.

RVS is suitable for use on painted or unpainted metal, plastic, glass, wood, or other surfaces, as well as between dissimilar materials.

For applications requiring high temperature stability.

Ideal as a gasket tightly squeezed between joint faces that are mechanically fastened together such as in window and trim applications.

In applications where damping vibration and noise is as important as weather sealing.

As a secondary seal behind liquid sealant.
 

   
Product Features:
• Does not dry out.
• Does not extrude out.
• Tolerant of joint face irregularities.
• Ideal as secondary seal to wet sealants.
• Handles jarring, vibration, thermal, and torsional movements of body and chassis.
• Odorless, clean handling and non-staining
• Exposed face remains virtually flat regardless of variation and changes in joint width and compression.
• User friendly—no masking, mixing, priming, tooling, curing, clean-up or special tools required.
 
 

Installation Guidelines

1. Storage and Surface Preparation
Tape should be stored in a warm dry interior location. Ideal application temperature is approx. 75F (24C). 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.




 


Limitations
• 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 UST.

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.



Contact us @ techinfo@emseal.com or for

Specialty Sealant & Gasket Applications

Contact: Bob O'Hayer
PH: 207-853-3107    CELL:
717-926-4685
FAX: 610-743-8486

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