Butyl mastic tapes of high quality with custom sizes
Provided in strips and rolls of custom length and size
Used mainly in automotive , vacuum bagging for wind mills, cable jointing kits, roofing tapes, cladding tapes, water tank sealing, construction.
Good sealing, antitracking property, high quality rubber and additives for better performance.
Supplied all india and can be exported to almost all countries like italy, united states, canada, australia, japan.
www.centroidpolymer.com
2. Chemistry between us
We are experts in the creation of high quality elastomers and Engineering plastics offering solutions for
the most demanding markets. We mix, mould, extrude, hand fabricate and formulate Elastomers and High
Performance Plastics for all the Engineering Solutions.
3. What we do, we do well. . .
We are experts in the creation of high quality Silicone elastomers and Engineering
plastics offering solutions for the most demanding markets. We formulate mix,
mould, extrude and hand fabricate Silicone Elastomers and High Performance PTFE
for all the Engineering Solutions. We specialise in problem solving, whether your
needs are small, medium or large.
Where are we located
We are a Indian Company founded in State Kerala. Our company
location commands a calm and greenery milieu. Our 30000sqft
factory site has the locational and economical advantages being
strategically located in the state with proximity to sea port, rail
connectivity and airport access for ease of logistics and this position
allows us to capitalise on a solid delivery infrastructure.
6. Rubber
Adhesives & Sealants
Butyl
Sealants
Silicone
Sealant Tapes
Black insulating mastic tapes
for electrical & tele-communication
Red Anti Tracking mastic for cable jointing kits
Stress grading
mastics for cable jointing kits
Butyl Sealant for roofing & Construction
Butyl Sealant tapes for Vacuum bagging and wind mills
Butyl Sealant tapes for sound deadening sealing applications in
automotive and refrigeration.
Silicone Self fusing Sealant tapes
7. Butyls – General Characteristics
What is a Butyl Sealant?
“Butyl Sealants“ are plastic (non-elastic) materials for interior and exterior application based on (non vulcanized ´)
rubber formulations
8. Advantages:
Caoutchouc sealants for interior and exterior application
• non reactive (permanent plastic)
• Self healing effect“
• permanently tacky
• long term resistant
• good temperature resistance: -30 to +90°C
• good adhesion to almost all sustrates (incl. PE, PP und EPDM)
• minimal surface preparation
• good ageing and weather resistance
• good resistance against water, moisture, aqueous solutions (pH 5 ... 9 )
• Water vapour tightness
• Environmentally friendly in production, application and disposal
Butyls –General Characteristics
9. Synthetic Rubber can be composed of: -PIB = Poly – Iso - Butene
A Little Chemistry...
Saturated polymer -no further networking possible ...
10. Synthetic Rubber can be composed of: -IIR = Isobutene – Isoprene - Rubber
A Little Chemistry...
Unsaturated polymer -more networking to the C = C double bonds are possible.
11. Measure of the hardness at room temperature –Deep of impact into the test material by falling body
Penetration (DIN 51580)
12. Measure of the flow ability at high temperatures
Melt Index MVI / MFI (DIN EN ISO 1133-1)
13. Measure of the softening point
Ring and Ball (DIN EN 1238)
14. Measure of inner strength of a material
Cohesion –Adhesion (DIN EN ISO 8510-2)
19. Used to filling the cable cores for insulation , sealing and waterproof performances.
Suitable for used in 11KV, 25KV and 36KV joints and terminations.
Void Filling Mastic
Applications:
Used to filling the cable cores for insulation , sealing and waterproof performances.
Suitable for used in 11KV, 25KV and 36KV joints and terminations.
Black Self-amalgamating Mastic Tape
SL.NO. PROPERTIES TEST METHOD UNIT SPECIFID
1 Softening point ASTM E-28 °C 100 min.
2 Water absorption R.T. for 24 hrs. % 0.5% max.
3 Volume resistivity ASTM D 1373 Ohm-cm 1x1010 min.
4 Shear strength N/cm² 2 min.
5 Needle penetration ASTM D-5 Unit/10sec 70 to 130
6 Density G/cc 1.5 to 1.65
7 Brittleness temperature ASTM D 2137 °C -30 min
20. Butyl Mastic Tape Telecommunication
Weatherproofing Kit for Connectors and Antennas
The unique waterproof tape for telecommunication, it consists of Butyl Rubber, with performance of adhesion, shape and super waterproof, it is also
resistant to corrosion for Copper and various cable sheathing materials. The tape is suitable for water seal with all kinds of telecommunication [equipment]
and cable connectors rated at 90℃ with an emergency overload rating of 130℃.
Application
Antenna Connection Waterproof.
RRU Connection Waterproof.
Earth Wire connection Waterproof.
Macro station and special application
21.
22. Used to filling the spacing between cable cores for insulation , sealing and waterproof performances. Suitable for used in 11KV, 25KV and 36KV joints and
terminations .
Anti-tracking mastic provide sealing and anti-tracking for power cable termination and joints for heat shrink and cold shrink technology.
Also used to bonding and sealing for connectors of electrical equipment and heat shrink mould parts.
Anti-Tracking Mastic
Applications:
Used to filling the spacing between cable cores for insulation , sealing and waterproof performances. Suitable for used in 11KV, 25KV and 36KV joints and
terminations
To provide sealing and anti-tracking for power cable termination and joints for heat shrink and cold shrink technology.
Also used to bonding and sealing for connectors of electrical equipment and heat shrink mould parts.
Anti-Tracking Mastic
Features:
Excellent sealing and waterproof properties
Anti-tracking
Anti-aging
Excellent self-sticking
Standard color : Red
Red Mastic Anti tracking Sealant
23. Properties Red Mastic Tape
Physical Properties
Colour Red
Size
Width 25 + 5 mm
Thickness 1.0 (min) mm
Length As per requirement
Needle Penetration 50 – 100 unit
Softening point 100°C (min)
Low Temp. Flexibility
(4 hr at –20°C)
No. Crack
Physical Form In roll form with release paper on both sides
Mechanical Properties
1) Shear Strength 3 N / sq. cm2
2) Elongation / Stretch test Min elongation 100%
3) Peel strength in PE 10N / 25 mm (min)
Electrical Properties
1) Volume resistivity 1 x 10 12
ohm cm (min)
2) Dielectric const at 50 HZ, 500 V -
3) Electric Strength -
Corrosion Resistance
168 hr at 90°C on Al conductor No chemical interaction / corrosion.
24. Stress control mastic provide stress relief of the electrical field in all MV cables joints and terminations for power cable applications. The stress control
mastic with excellent stress controlling and self-sticking properties make it widely use in heat shrink and cold shrink technologies. Stress control mastic
equilibrate the electrical field and reduce the electrical stress. Stress control mastic resistant to water and humidity, filling voids and irregular shapes.
Applications:
Stress control mastic provide stress relief of the electrical field in all MV cables joints and terminations for power cable applications. The stress control
mastic with excellent stress controlling and self-sticking properties make it widely use in heat shrink and cold shrink technologies. Stress control mastic
equilibrate the electrical field and reduce the electrical stress. Stress control mastic resistant to water and humidity, filling voids and irregular shapes.
Stress Control Mastic
25. Properties Stress Grading Mastic
Physical Properties
Colour Brown
Size
Width 25 mm
Thickness 2.5 mm
Length As per requirement
Needle Penetration 25 unit (min)
Softening point 125·
(min)
Low Temp. Flexibility
(4 hr at –20°C)
No Crack
Physical Form In roll form with release paper on both sides
Mechanical Properties
1) Shear Strength 3 N / cm2
(min)
2) Elongation / Stretch test 75% width reduced without breakage
3) Peel strength in PE 10N / 25 mm (min)
Electrical Properties
1) Volume resistivity 1 x 10 9
ohm cm (min)
2) Dielectric const at 50 HZ, 500 V 18.0 (min)
3) Electric Strength 8 MV/m (min)
Corrosion Resistance
168 hr at 90°C on Al conductor No Chemical interaction / corrosion
26. Butyl sealant for composites in low temperature
Centroid Polymer sealing tape are developed for vacuum bagging operations. This
product has been formulated to outperform all tapes in its category. With aggressive
initial tack, it will maintain an air-tight seal during the cure cycle, yet strip clean from the
tool, with virtually no trace of residue. provides easy de-bagging and minimal clean-up
between productions cycles. exhibits these excellent usage and release characteristics
from composite and metal tools, in both oven and autoclave applications. The tape .
Economic butyl sealant tape, ideal for use in all those processes where the working
temperature does not exceed 150°C.
Economical product, designed
to seal large dies for processing with infusion or core or composite compaction with
the use of low temperature vacuum.
The butyl / sealant tape is typically for sealing the substrate to the vacuum bag. With a combination of synthetic rubber with inert fillers, plasticiser and
tackifiers, the tape provide an excellent bond to variety of substrates and less likely to incur any leaks. The tackiness of the tape is formulated in such a way it
provides a clean release once the composite is formed.
A thick, Rubber-Based adhesive tape that is sticky all around, is used to form and airtight seal along the edges of Vacuum Bags. This Tape is use in Vacuum
Bagging of Composite Parts. This Tape will seal the bag to Aluminum, Steel and Fiberglass surfaces yet strips easily after cure. Use to Plug Leaks and Tears in
the bag that can develop during cure. The Tape remains soft and pliable at temperatures in excess of280 ° it is also referred to as Tacky Tape.
Butyl sealant for composites in high temperature
27. Application of butyl adhesive tape on wind turbine blades
• Wind turbine blade special sealing tape of Centroid Polymer Technologies has
the following advantages in the practical application process of domestic and
foreign customers in recent years:
• (1) Because butyl rubber is used as matrix, its sealing performance is good;
• (2) A considerable penetration ensures that the rubber strip is not too soft and
can maintain a certain thickness in the process of pressing the roll.
• (3) It has good initial adhesion to vacuum bags such as nylon and various
mould materials, especially at low temperature, which is suitable for the use of
northern enterprises in autumn and winter.
• (4) For steel, aluminium and other substrates, rubber strips can be stripped
easily after cooling, and there is no trace of residual glue, so it is easy to
operate.
• (5) Can withstand 204 ℃ high temperature.
• The seal tape of Centroid Polymer Technologies can meet all kinds of
application requirements of VARTM to prepare wind turbine blade in the
whole performance. Windmill Vacuum
Baggaging Tape
28. No. Performance Typical Vulue Test Method
1 Tensile Strength 1.10 MPa ASTM D 4325
2 Elongation at Break 900% ASTM D 4325
3 Dielectric Strength 3.2 ASTM D 4325
4 Adhesion 25N/50mm ASTM D 1000
5 Dielectric Consumption 2% ASTM D 4325
6 Continuous Working Temperature 130℃ ASTM D 4388
7 Emergency Overload Temperature 230℃ ASTM D 4388
8 Water Absorption ＜0.1g/(100 inch .24h) ASTM D 3833
9 Ozone Resistance Pass ASTM D 4388
10 Heat Exposure Pass at 130℃ ASTM D 4388
Properties
29. Butyl Based Sound Dampening Anti Vibration Pads
We offer Butyl Based Sound Dampening Anti Vibration Pads. Apart from being strong adhesive tapes, butyl rubber is most effective in
drowning out sounds and vibrations. It has an excellent noise and vibration dampener. Owing to this property all major Automobile companies,
Refrigeration & Air conditioners manufacturers worldwide are using butyl pads for vibration & noise reduction. We produce butyl anti vibration pads
in various sizes & thickness as per the specific requirement of our customers.
Our sound dampeners provide the Millennium technology for noise reduction in Automobile, Air-conditioners and Gensets. These
combine the versatility of flexibility and ease of application with efficient damping power. They exhibit excellent tack, chemical resistance and
weathering resistance.
Features:
Fine finish
Tear resistance
Durability
30. Butyl Sealant Tape for Automotive Applications
Automotive uses include sealing around the frames of sunroofs, in the dust panels inside car doors, around head and rear lights in panel beating shops
and as well as mounting tracking devices in hidden compartments inside vehicles. It has great sound deadening applications for the automotive industry.
Butyl tape is used as a water seal in various caravan construction applications. CARAVAN manufacturers have many applications such as sealing between
mouldings and the outer skin, lap joints on the body work and other areas where fittings are attached piercing the outer skin.
Head Light
The Hood
Front Door Rear Door
Trunk
31. Butyl Roofing & Cladding Tapes
We are the manufacture for the preformed butyl tape, an integral part of an industrial roofing system. In a built-up roof, double-sided
butyl is used on the end laps of the liner panel and a single faced Polyband strip along the side laps. The top sheet, or weather sheet, is sealed along
the end laps and side laps with a double-sided butyl tape. Composite panel roofs are sealed with a double-sided butyl tape along both end laps and
side laps. Foam fillers at the ridge and eaves are fixed in place with a thinner tape and this is also used in the production of rooflights. Butyl tape has
further applications around rooflights, gutters and flashings. Some wall cladding designs also call for butyl tape to be applied along the side laps.
Roof and wall membranes are also sealed with double-sided butyl.
Centroid Polymer Technologies BUTYLTAPE was designed specifically for the metal building industry to provide optimal sealing in the
harshest environments. It adheres to most clean, dry metal surfaces and does not harden, bleed or stain. With pressure, it fills minor irregularities in
the surface and 9eals the joints providing an effective barrier against water, moisture, dust, and dirt
32. What are Silicones?
The term “silicone” is used to describe a variety of organosilicon compounds that
integrate silicon, a chemical element designated as Si. Silicon cannot be found naturally
in its pure state, but is present in chemically and thermally stable mineral compounds.
The common term “silicone” refers to the chemical family of “polyorganosiloxanes”. In
practice, the organic part of the polymer can be a methyl group, but other constituents
can be seen on Si atoms.
14
Si
Properties of Silicone Rubber
The strong silicon-oxygen chemical structure of silicone gives the elastomer its unique
performance properties. Examples include:
Temperature Resistance
Silicones withstand a wider range of temperature extremes than nearly all other
elastomers, remaining stable through a range of -75°F to 500°F. They may be sterilized
by ethylene oxide (ETO), gamma, e-beam, steam autoclaving and various other
methods.
Mechanical Properties
Silicone rubbers have high tear and tensile strength, good elongation, great flexibility
and a durometer range of 5 to 80 Shore A. The softest durometers available are
reinforced gels.
33. Electrical Properties
Silicones exceed all comparable materials in their insulating properties as well as
flexibility in electrical applications. They are nonconductive and maintain dielectric
strength in temperature
extremes far higher or lower than those in which conventional insulating materials are
able to perform.
Biocompatibility
In extensive tests, silicone rubbers have exhibited superior compatibility with human
tissue and body fluids, and an extremely low tissue response when implanted, compared
to other elastomers. They do not support bacteria growth and will not stain or corrode
other materials. Silicones are odorless, tasteless and are often formulated to comply with
biocompatibility guidelines for medical products.
Chemical Resistance
Silicones resist water, oxidation and many chemicals, including some acids and alkali
solutions. Concentrated acids, solvents, oils and fuels have a negative effect on silicone
rubber and should not be used with silicone.
34. Self-fusing Silicone Tape
Silicone tapes are produced from specially formulated silicone rubber. They bond irreversibly to provide an insulative barrier that is resistant to
moisture, oxygen, ozone and corona over a wide temperature range (-65°F up to +500°F). Our products provide superior electrical insulation with a
dielectric strength of 300 VPM minimum at 356°F/180°C.
Molten metal splash = Excellent
Direct flame = Excellent
High temperatures = Excellent
Oil resistance = Very good*
Water resistance = Very good*
Hydraulic fluid resistance = Very good*
Fuel resistance = Very good*
Wear resistance = Very good
UV resistance = Very good
TYPICAL PROPERTIES
Thermal Stability ....................................356°F/180°C
Temperature Range ............................-65°F to +500°F (-54°C to +260°C) Volume Resistivity.................................. 1013 ohm-cm min. (ASTM D257)
Self Adhesion ............................................2 p.p.i min. (3.5 N/cm) (ASTMD2148) Hardness ........................................................ 50±10 Shore A (ASTM D2240)
Moisture Absorption ..........................0.9% (46 hrs. in H2O @ 70°F)
