Bulwark Poly Seal

FEATURES / ADVANTAGES:

• Cures at ambient temperatures to a tough, elastic and flexible rubber like material.
• Bonds strongly to most of the building materials with the use of recommended primers.
• Durable, remains unaffected by UV rays, ozone and weathering conditions.
• Resistant to water, salt water, 10% dil. acids except nitric acids, alkalis, most of the
• Common chemicals, vegetable, lubricating oils and fuels.
• Performs well in a temperature ranging from –20⁰C to 80⁰C.
• Slip resistant (sag) can be applied in horizontal joints.
• Movement capability – Provides satisfactory hermetic sealing of the joint subjected to expansion, contraction, vibration and cyclic movement within the following limits, movement joints up to ± 25% of the width.
• Slip resistant (non-sag) can be applied in vertical & ceiling g joints.
• Self leveling, after pouring in horizontal joint levels itself.
• Recovers the original width after expansion & contraction without loosing the surface bond.
• Excellent reparability property.
• It can be over coated by waterproofing compounds.
• Non-toxic.
• Seal will not cause staining to concrete masonry or stones.

TYPICAL APPLICATION:

Sealing of expansion, contraction & construction joints in building structures such as, basements, subways, retaining walls, floors, external walls and claddings of high-rise buildings, roof terraces & ceilings especially structural expansion joints running through the ceiling.

• Sealing of dynamic structural cracks
• Glazing joints of window, door frame and curtain walls.
• Joints & ‘J’ bolts of asbestos sheet roofing
• Sealing of water retaining structure joints such as, water tank, reservoir, dams, aqueducts, canals, culverts and water treatment plant.
• Sealing of joints in traffic areas such as, bridges, roads and car parking areas.

TYPICAL CHARACTERISTICS:

• NATURE : Two Component
• Mixing Ratio Base : Accelerator 92 : 8 parts by weight
• Consistency after mixing : Thick, non-sag paste
• Application time (pot life) at 30⁰ C : 2 - 3 hours
• Initial setting time at 30⁰ C : 24 hours
• Complete curing time, At 30⁰C to 35⁰C : 1 week
• Color-Base compound : Off, White , Accelerator (curing compound) : Dark brown to black
• Mix compound : Grey
• Sump (sag) resistance : No Sagging

JOINT DESIGN:

In building structures various (different) types of joints are designed such as Butt joints, Lap joints, Fillets Joints, Expansion joints, Control joints and Glazing joints. As the joint expand, contract or experience a shear movement, cyclic movements,Seal changes the shape accordingly, but the volume ofSEAL remains same.

To achieve the long-tem, effective performance the established width-to-depth ratios are determined as 2:1

Example: - 20mm width then depth must be 40mm

SURFACE PREPARATION:

• Surface preparation is the most important step before application ofSEAL to get best results and to avoid failure.
• The joint surface must be dry, free from dust, coatings, bituminous mastics, concrete curing agents, mold release agents, oils, greases and loose particles.
• Clean the joint surface by wire brush and sanding with emery paper.
• Remove dust by compressed air or paint brush.
• Wipe out oil and grease by solvent soaked cloth (such as Xylene, Toluene or Acetone

BACK UP MATERIALS:

Insert compressible polyethylene, polyurethane, neoprene, polyethylene butyl rod as backup material to control depth of Seal in the joint and to provide support for tooling of the Seal.

PRIMING:

Apply two coats of BULWARK SEAL COTE by brush on the sides of the joints surface at an interval of 30 minutes.

BOND BREAKER:

• Fix bond breaker tape such as self adhesive polyethylene tape on back-up material to avoid adhesion of Seal to the third surface.

MASKING TAPE:

Apply masking tape such as self-adhesive polyethylene, cellophane or cloth tape on both edges of the joint. It is used to improve the neatness of the finished seal by protecting the face edges of the joint. It may be removed immediately after tooling of the Seal.

MIXING:

The base and accelerator compounds are packed in pre-weighed quantity as per the mixing ratio. After the application of primer, mix the material of individual container. Transfer entire quantity of accelerator to the base compound tin and mix it thoroughly to a uniform, homogenous black color. Mixing can be done manually with spatula, palette knife or special flat stirrer attached to a low speed electric mixer less than 500rpm.

APPLICATION:

Apply the mixed gun grade compound by means of a spatula or by filling into a plastic cartridge which is then placed into the hand held caulking gun into the joint.

TOOLING AND FINISHING:

It is desirable that a smooth surface is obtained. Tool the Seal by pressing the puffy knife or flat tool against the Seal surface, moving along the length of the joint. Tooling breaks air bubbles and exposes any air pockets present. Tooling compresses the Seal, thus promoting adhesion to the joint sides. After tooling the masking tape should be removed immediately. Soap solution can be used to smoothen the Seal surface.

COVERAGE OF SEAL:

To estimate the no. of running meter work done in 1 kg of Bulwark Poly Seal required to seal the joint can be very easily estimated by using the following formula:

BULWARK POLY SEAL LENGTH = 650 / (W X D)

Example: 20MM(W) 40MM(D) =800MM (650/800=0.8 Meter)

COVERAGE FOR PRIMER:

1 liter of primer is required per 15kgs of Seal.

CLEANING OF TOOLS & EQUIPMENT:

Tools and equipment can be easily cleaned with solvent such as xylene, toluene, methyl, ethyl, ketone and acetone.

STORAGE AND SHELF LIFE:

Store the material at cool and dry place (at 25⁰C temp. & 50% RH) Shelf life is 9 months in unopened containers.

PACKING:

4 KG

SPECIFICATION COMPLIES:

• BS 4254-1983 : British Standard Specification
• IS12118: Bureau of Indian Standards (BIS)
• DIN-18549 : German Standard Specification.

PRECAUTIONS:

• Some people are sensitive to resins, hardeners, solvent and its vapors so it is advisable t o use hand gloves and goggles.
• Avoid application and damp or moist substrate.
• Store at cool & dry place.
• Ensure that two coats of primer are applied on the jointing surfaces.

WARRANTY:

5 Years Product Performance Warranty.

IMPORTANT NOTE :

All BULWARK CHEMICALS and its products are sold in the market after strict Quality Control in line of ISO 9001 and guaranteed against any manufacturing defect. Although the basic formulation of Company’s products generally remains unchanged, production refinements arising from continuing research and evaluation program may occasionally result in marginal changes in properties. Bulwark aspires to ensure that any recommendation, advice, test data, specification, method statement and other information given in this product datasheet is accurate and best of company’s knowledge. Since, the company (bulwark cool coats and chemicals) has no control over the selection of its product, applicators, application methodology, how and where it is applied, therefore, the company cannot accept any liability directly or indirectly arising from the use of its product. It is important to any customer; user or specifier satisfies him / herself that the product is suitable for the intended purpose including health, safety and environmental aspect. Unless or otherwise agreed in writing, all products of the company are sold strictly pursuant to the terms of our standard conditions of sale which are available upon request. All information and technical assistance is given without warranty or guarantee and is subject to change without notice. All customers, users, specifers should ensure that they examine the suitability of the product with company’s latest product data sheet.

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