Sandell Manufacturing Company, Inc.
310 Wayto Road
Schenectady, NY 12303
Tel: (518) 357-9757
Toll-Free: (800) 283-3888
Fax: (518) 357-9636
E-mail: moreinfo@sandellmfg.com
Web site: http://www.sandellmfg.com

Branch Office:
1700 Vanderbilt Rd
Birmingham, AL 35234
Tel: (205) 263-1030
Toll Free: (877) Sandell
Fax: (205) 263-1033

POLYSEAL was specifically designed as a user-friendly joint sealant for the construction industry. It is commonly used to fill vertical and horizontal expansion control and isolation joints in exterior walls.

POLYSEAL provides a barrier to the external environment by creating a breathable seal. This seal prevents the penetration of liquid and moisture into the joint, directly or indirectly. It does so by creating an elastic seal on the exterior surface which prevents the infiltration of the environment. This type of seal allows the dissipation of moisture through evaporation.

The philosophy and high quality of the open micro cell urethane foam allows POLYSEAL to provide an exceptionally long life as a primary exterior sealant.

POLYSEAL is composed of an elastic open-cell polyurethane foam with a modified acrylic flame retarding polymer, which is free of all fluorianted hydrocarbons. POLYSEAL is precompressed 15 to 20% of its initial size and manufactured with a water based pressure sensitive adhesive on one side. POLYSEAL, will remain flexible, and will not dry out, crack, shrink, or deteriorate. POLYSEAL's resistance to the infiltration of weather, sound vibration, UV, aging, and flammability makes it environmentally harmless and a superior sealant material. Packaged in rolls with PSA on one side for ease of installation in the joint.

1. PRODUCT NAME

Polyseal

2. MANUFACTURER

Sandell Manufacturing Co., Inc.
Birmingham, AL
Toll Free: (877) SANDELL

3. PRODUCT DESCRIPTION

Polyseal is an impregnated preformed compressible sealant, produced by combining permanently elastic, high density open cell, polyurethane foam with stabilized acrylics. The products are supplied precompressed in a tape form with a PSA on one side.

Basic Use: Polyseal is permanently elastic compressible expansion joint sealant for all types of movement joints in construction. It is ideally suited to high performance expansion joints and control joints in traffic areas, such as parking garages, concrete roadways, bridges and other deck expansion joints (plaza decks, roof decks). It is installed flush or, slightly resects from the surface without the use of a protective coating. Due to the elastic nature, it is used extensively in vertical and horizontal joints in building facades, window perimeters, large abutment joints between buildings.

Advantages:

• Polyseal provides a permanently elastic weather proof seal for all prescribed construction conditions of joint movement.
• Excellent adhesion to concrete and other construction surfaces.
• Polyseal has constant depth of material in the joints.
• Polyseal follows the contours of the joints making it very suitable for irregular joints.
• It is an ideal for retrofit applications.
• The material is very easy to install. Polyseal is precompressed to less than the actual joint opening size. After being inserted into the joint, Polyseal expands filling and sealing the joint.
• Polyseal has a flame retarding polymer added to the impregnation.
• Polyseal is resistant to most salts, acids, gasoline and other industrial effluents.

• Polyseal will not adhere to surfaces that are dirty, covered with dust or with surface contamination.
• Temperature stability range is -40 degrees F to 212 degrees F (-40 degrees C to 100 degrees C).

Surface Adhesion: Adhesion takes place between the Polyseal and the joint surfaces under compression and insertion into the gap. The adhesion develops as the material ages in the joint. The adhesion between the Polyseal and the joint sides is approximately the same as the tensile strength of the Polyseal. The Polyseal expands to form an effective seal, conforming to the irregularities in the joint surfaces, and performs as a compression seal by continuously exerting back pressure to the joint surfaces.

Compatibility with other materials: Polyseal BF and Polyseal HF are compatible with cement, block, brick, plastic, wood and other normal building and construction materials. Polyseal used in a secondary sealing condition will not bleed into the construction joint and is compatible with the wet sealant.

Joint Sealant design: Polyseal's ability to seal is determined by the degree of compression the material has in the joint. A minimum compression of 50% is required to ensure the adhesion of Polyseal to the joint surfaces to produce a seal for dust and draft. A compression of 33% of the original size of the Polyseal will provide a thermal and acoustic seal.

4. TECHNICAL DATA:

Technical Data Table

5. INSTALLATION:

During installation Polyseal should not be pulled or stretched, this will cause gaps to occur between successive lengths of the Polyseal. Vertical joints should be sealed from the bottom to the top ensure the material does not stretch. During horizontal installations the successive pieces should be pushed into one another. Please contact our local representatives in your area for any assistance.

Storage: Polyseal should be stored inside at room temperature whenever possible. Shortly before using the Polyseal enough material to complete a section of the joint should be removed from the room temperature storage. The precaution is necessary because of the variations in the recovery rates due to the differences in the temperatures. The Polyseal will expand quicker in warm temperatures and slower in cold temperatures. A heat gun can be used in cold temperatures to accelerate the expansion of the Polyseal and in warm temperatures the use of an ice-box or dry-ice will reduce the expansion of the Polyseal.

Surface Preparations: The joint must be free of irregularities, rough particles, foreign materials such as dirt, dust, ice, snow, water, and coatings such as grease, oil, release agents, lacquers.

6. AVAILABILITY AND COST

Availability: Polyseal is available through-out the United States and Canada through the manufacturer's local representatives and stocking distributors.

Cost: Cost information is available from the manufacturer's agent and local representatives.

7. WARRANTY

Subject to certain limitations, Sandell warrants the Polyseal against defects in the material for up to ten years for vertical applications, providing all limitations and recommendations from the manufacturer are met.

8. MAINTENANCE

There is no special maintenance required.

9. TECHNICAL SERVICES

The manufacturer and local representative will provide analysis of particular project requirements and make recommendations for the proper use of the sealant tape.

SANDELL POLYSEAL

HOW POLYSEAL WORKS:

The philosophy of joint sealant: Joint sealants provide impermeable barriers to the external environment, wind, snow and rain. The seal prevents the penetration of the environment into the structure, directly or indirectly. There are many problems with the consistency of this type of barrier, maintenance, and the life of the seal, because of the expansion and contraction in the joint. Consider reversing this philosophy of the exterior penetrating to the interior, but the interior passing to the exterior. The interior pressures are higher than the exterior pressures allowing vapors to escape, but holding the exterior environment out, creating a breathable seal. A hermetic seal on the exterior surfaces prevents the infiltration of the rain, snow and wind. A hermetic seal allows the absorption of moisture until saturating the seal, when conditions permit slowly releasing through evaporation. Scandinavia, Europe and other parts of the world support this philosophy. Polyseal compressed to 15 to 20% of the initial size and designed to be installed in a gap at 20% of the initial size for effective sealing. Joint walls should be sound and parallel to seal against heavy rain. The Institute for Fenstertechnik, Rosenheim, confirmed the permeability of Polyseal in heavy rain.

CHARACTERISTICS:

Material Description: Polyseal is a flexible polyester polyurethane foam impregnated with a modified water-base acrylic flame retarding polymer. The water-repellant polymer coats the three-dimensional network of cells. The network of cells being flattened under compression develop layers of waterproofing polymer and permeability to air and heavy rains. Polyseal will retain its flexibility and continue to expand and contract in the joint. It will not dryout, crack, shrink or deteriorate. The most difficult application problems are solved with Polyseal. It creates seals between similar, dissimilar, rough and irregular material surfaces. The sealant tape's versatility makes uses in other industries possible.

PACKAGING:

Polyseal is packaged in rolls compressed to 15% of the ultimate size in packaging. The std. gap is 20% of the expanded size and is designed to develop an air and moisture seal in the gap at 20% compression of the ultimate size. Polyseal is free of fluorinated hydrocarbons. Its composition and production methods make it ecologically sound and environmentally safe.

STATE OF DELIVERY:

Polyseal is a precompressed, self-expanding, impregnated foam sealant tape compressed to 15%-17% of the initial sizes, with a PSA (pressure sensitive adhesive) applied to one side of the sealant tape for placement in the gap.

The material order is by the dimensions.

Example: Polyseal 10/50 x 30

Polyseal: Product Name

10/50 x 30: Stock Number

10: Compressed Thickness

50: Initial Thickness

30: Material Depth

The standard stock dimensions are listed in the appendix.

COMPRESSION SET:

Polyseal will not take a compression set. The sealant tape will remain flexible and will not shrink, crack or deteriorate. Polyseal installation can be completed in all weather conditions. During cold or warm weather, special precautions are taken to insure proper installation. The temperatures affect the expansion time, accelerating or decelerating the expansion time of the tape. The use of heat guns in cold weather accelerate the expansion time and cooling boxes in the warmer weather reduce the expansion time. The expansion time is important for proper installations and allows the installer time for placement of the joint sealant tape. The ideal installation and storage temperature is 10-20 degrees C. Storage of Polyseal can be for one year.

AIR PERMEABILITY:

DIN 18 055 and EN 42 describe the test methods used to characterize the air permeability. Two panels set side by side with a gap between them set at 10mm. the length of the gap is one meter. The pressure is 10Pa different from one side to the other side of the panel. The test measures how much air passes through the opening during a one hour period. This is the a-value:

The a-value of Polyseal with a compression of 20% of the initial size is: a=1.017m³/hm(10Pa)2/3. The air permeability is dependant on the compression of the foam. The a-value will decrease as the compression increases.

CONSTRUCTION:

1. Building Systems: Precast and lightweight concrete panel slabs, beams and columns. Glass, aluminum, stucco, metal building components, paint, coatings and sealants. Prefabricated Building Panels.
2. Expansion Joints: Concrete Slabs and Blocks, Brickwork, Panels, Walls.
3. Floors: Foundations and Columns.
4. Roofs: Cement sheeting, Glass roofs, profiled roof sheeting, Domes, Skylights, & Vents.
5. Walls: Curtain wall installation, building facades, partitions, precast and other panels, Cladding log homes.
6. Doors & Windows: Wood, PVC and aluminum window and door frames, profiles, glazing, header jambs, sills, store fronts.

1. Expansion Joints: Concrete slabs, underground retaining walls, etc.
2. Roadways: Bridge expansion joints, bridge bearing sealing, viaducts, paving, concrete runways and highways, earth reinforced wall system panels.
3. Underground*: Tunnels, Septic tanks, sewage and water treatment plants.

*Where hydrostatic pressures are negligable because of adequate gravity drainage.

1. Automotive: Auto window installation, sidewall and roof sealing, anti-vibration, sound dampening, gasketing, aperture sealing.
2. Trucks and Coaches: Sidewall & roof seals, final component assembly, acoustic, anti-vibration, gasketing sealing.
3. Shipbuilding: Cabins, decks, anti-vibration and acoustic sealing.
4. General: Refrigeration ducting, venting, cold rooms, heating insulation, Instrument assembly, computers, awnings, gaskets, damp and dust proofing, noise, metal construction.