419 - Composites Catalogue-Atul
419 - Composites Catalogue-Atul
419 - Composites Catalogue-Atul
Energising possibilities…
Stimulating growth…
LEGACY
Founded in 1947 by a legendary Indian, Kasturbhai Lalbhai, Atul Ltd (Atul), is amongst the first companies of
independent India. It has the distinction of being the first private sector company of India to be inaugurated by the first
Prime Minister of the country, Pandit Jawaharlal Nehru. It is part of the Lalbhai Group, one of the oldest diversified
business houses of the country engaged in manufacturing since 1896. Ever since its inception, Atul has been
committed to serving society, particularly in the areas of education, empowerment, health, relief, infrastructure
and conservation.
PROFILE
The first site of Atul, spread over 1,250 acres of land, houses one of the largest and the greenest chemical
complexes of its kind in the world. Starting with just a few textile dyes, the Company now manufactures 900 products
and 450 formulations, managing complex chemical processes in a responsible way. It has also established fruitful
and time-tested collaborations with leading multinational companies of the world.
Atul serves customers belonging to diverse industries including Adhesives, Agriculture, Animal Feed, Automobile,
Composites, Construction, Cosmetic, Defence, Dyestuff, Electrical and Electronics, Flavour, Food, Footwear,
Fragrance, Glass, Home Care, Horticulture, Hospitality, Paint and Coatings, Paper, Personal Care, Pharmaceutical,
Plastic, Polymer, Rubber, Soap and Detergent, Sports and Leisure, Textile, Tyre and Wind Energy. In order to
enhance customer focus, the Company has divided its product portfolio into seven businesses - Aromatics, Bulk
Chemicals and Intermediates, Colors, Crop Protection, Floras, Pharmaceuticals and Intermediates and Polymers,
and has established subsidiary companies in the USA, the UK, China, Brazil and the UAE.
PURPOSE
Epoxy resins, reactive diluents and curing agents are manufactured and marketed under the trade name ‘Lapox®’ by
the Polymers Business of Atul. The manufacture of epoxy systems began in 1960 in Cibatul Ltd, a joint venture
between the erstwhile Ciba-Geigy (Switzerland) and Atul. Following the disintegration of Ciba-Geigy, Cibatul was
merged into Atul in 1999.
The state-of-the-art manufacturing facilities for these products are located in Atul complex, 200 km north of Mumbai.
In addition to its leadership position within India, Polymers also sells to discerning customers outside the country.
The Business has been awarded ISO 9001:2008 and ISO 14001.
Lapox® is a registered trademark of Atul Ltd.
Industries served
®
Lapox range of products for composites
Atul’s epoxy systems are designed to achieve high performance in the composites industry for various process
techniques including:
Compression moulding Prepregging
Contact moulding Pultrusion
Filament winding Resin Infusion (RI)
Hand lay-up Resin Transfer Moulding (RTM)
FILAMENT WINDING AND PULTRUSION SYSTEMS
Atul offers several epoxy systems for filament winding and pultrusion applications. Suitable epoxy systems may be
selected as per the process and performance requirements. These systems may be processed with a variety of
reinforcements at ambient and elevated temperatures. Components manufactured with epoxy systems offer excellent
mechanical, electrical, chemical, thermal and physical properties for various filament winding and pultrusion applications.
L-12 / AH-422 100 : 32 1,500 - 2,500 300 - 350 130 - 140 Offers a long pot life with high Tg.
¹Brookfield viscosity
²Pot life of 100 g mix mass
³Tg: Glass transition temperature
Method: Mix viscosity - ASTM D5478; Pot life - ASTM D2471; Tg - ISO 11375-2
*
Hot cure systems
L-12 / K-918 / K-13 100 : 85 : 1-3 600 - 900 >8 130 - 140 Recommended for general purpose applications.
L-12 / K-5200 100 : 24 4,000 - 6,000 2 - 3 days 180 - 190 Offers very high Tg with a long pot life.
General purpose system providing fire
L-247 / K-918 / K-13 100 : 64 : 1-3 – >8 110 - 120 retardant properties.
¹Brookfield viscosity
²Pot life of 100 g mix mass
³Tg: Glass transition temperature
Method: Mix viscosity - ASTM D5478; Pot life - ASTM D2471; Tg - ISO 11375-2
*
PREPREGS AND LAMINATION SYSTEMS
Atul offers a wide range of resin systems for the manufacture of B-stage prepregs and laminates which meet process and
performance requirements. These lamination systems offer excellent impregnation and compatibility with a variety of
reinforcements, excellent mechanical strength, high thermal resistance and a varying shelf life of prepregs.
ARPN-36 / K-86 100 : 3-6 >8 165 - 180 Recommended for MICA paper impregnation.
Prepreg systems
Hot melt prepreg system for 150C Tg. This system may
ARL-159 / AH-357 / AC-22 100 : 15 : 2 >8 155 - 165 also be used while adding a solvent.
Atul offers an extensive product range of epoxy resin systems with variable pot life, cure time, glass transition
temperature (Tg) and physical properties. These systems are suitable for various processes including Resin Transfer
Moulding (RTM) and Resin Infusion (RI). The variable pot life of these resin systems make them ideal for manufacturing
small to very large components, including wind turbine blades. Our range includes GL approved epoxy systems for
composite applications.
ARL-125 / AH-365 100 : 32 200 - 300 50 - 60 75 - 85 Low viscosity systems recommended for Resin
Infusion, Resin Transfer Moulding, pultrusion,
filament winding, hand lay-up lamination,
ARL-125 / AH-367 100 : 32 300 - 700 300 - 380 75 - 85 vacuum and pressure bag techniques.
¹Brookfield viscosity
²Pot life of 100 g mix mass
³Tg: Glass transition temperature
Method: Mix viscosity - ASTM D5478; Pot life - ASTM D2471; Tg - ISO 11375-2
*
TOOLING SYSTEMS
Atul offers various gel coats and laminating systems for manufacturing prototypes and moulds. Laminating systems are
available with variable pot life and viscosity to manufacture small to large moulds. The variable pot life of these epoxy
systems make them suitable for hand lay-up and Resin Infusion processes.
Laminating systems
¹Brookfield viscosity
²Pot life of 100 g mix mass
³Tg: Glass transition temperature
Method: Mix viscosity - ASTM D5478; Pot life - ASTM D2471; Tg - ISO 11375-2
*
ADHESIVE SYSTEMS
The range of adhesives offered by Atul are suitable for joining similar and dissimilar substrates for high performance
applications using different processes.
¹Brookfield viscosity
²Pot life of 100 g mix mass
Method: Mix viscosity - ASTM D5478; Pot life - ASTM D2471
*
GLOSSARY
B-stage
B-stage is an intermediate reaction stage of thermosetting resins. A material in this stage softens when heated and
swells when it comes in contact with certain solvents. However, it does not fuse or completely dissolve.
Cross-linking
Reactive sites of the resin and curing agent make chemical bonds and form a three-dimensional network.
Cross-linking starts as soon as the resin and curing agent come into physical contact. The speed of the reaction (i.e. of
cross-linking) depends on the type of resin, curing agent and the temperature.
Cure time
Cure time is the amount of time required for a liquid resin-curing agent mix to convert into a completely cross-linked
solid mass. It depends on various factors including the type of resin, curing agent and the temperature.
Elastic modulus
Every object deforms elastically when force is applied. This deformation is completely reversed when the applied force
is removed. Elastic modulus is a measure of stiffness of the material or object.
Elongation
Elongation is defined as the change in length of a specimen or object when load is applied under tension, bending or
any other mode.
Gel time
Gel time is the amount of time required for a resin-curing agent mix to convert into a jelly-like mass. It depends on the
type of resin and curing agent, the quantity of the mix and the temperature.
Post curing
When resin and curing agent react, cross-linking takes place and a solid, cured mass is obtained. In certain epoxy
systems, even though the material appears cured and hard, optimum mechanical properties are not achieved.
This happens due to the presence of free reactive sites of the resin and curing agent that can be completely
cross-linked by heating (post curing) at appropriate temperatures.
Pot life
The amount of time taken to retain processable (i.e. usable) viscosity of a resin-curing agent mix. Mix viscosity
increases with time. Pot life is dependent on the type of resin and curing agent, quantity of mix and the temperature.
Shrinkage
Shrinkage is defined as the change in dimension that occurs in a polymer(s) when cross-linking takes place. Volume
shrinkage is expressed as a percentage while linear shrinkage is measured in millimeters or inches.
Stiffness
This is the measure of resistance to deform when under stress by an object. A material with high stiffness is brittle and
displays high modulus.
Toughness
Toughness is a material’s resistance to fracture when under stress. It is measured as the amount of energy absorbed
by unit volume of material before disintegration.
Viscosity
The internal resistance of a liquid to flow, viscosity can also be defined as ‘fluid friction’.
MAJOR RESINS, CURING AGENTS AND THEIR SPECIAL FEATURES
General purpose basic resin in liquid and solid forms to achieve a combination of
Bisphenol-A based resins
physical, electrical, mechanical, thermal and electrical properties
Brominated epoxy resins Available in semi-solid and solid forms; used for flame retardancy
Carboxyl-terminated butadiene-acrylonitrile
Higher viscosity, fracture toughness and impact resistance
(CTBN) rubber modified resins
Fatty acid modified resins High flexibility, low shrinkage and good adhesion properties
Phenol and cresol novolac epoxy resins Relatively high viscosity, reactivity, thermal stability and chemical resistance
Polyurethane modified resins High flexibility, low shrinkage and excellent adhesion properties
Reactive diluent modified resins Low viscosity, high elongation and easy processibility
Tetrafunctional epoxy resins High heat resistance, glass transition temperature and stiffness
Aliphatic and cycloaliphatic amine Enables fast curing in the presence of accelerators
curing agents and adducts
Available in liquid and solid forms with elevated temperature curing and high
Anhydrides
electrical resistant properties
Available in liquid and solid forms with slow reactivity, elevated temperature curing
Aromatic amines
and high performance properties
Phenalkamines Low temperature curing, sea (saline) water resistant with good film forming character
Available in liquid and solid forms with elevated temperature curing, high heat and
Phenolics chemical resistant properties
Atul
INDIA
Head office Registered office
OUTSIDE INDIA
Atul Brasil Quimicos Limitada Atul China Ltd Atul Europe Ltd Atul Middle East FZ-LLC Atul USA Inc
Avenida Ipiranga, 318 Room 806 1|B Dean Row Court Nucleotide Complex Office #400
Conjunto 1001, Sala 04, Bloco A Building 2E Summerfields Village Centre Emirates Road, Floor 3, Office #43 6917 Shannon Willow Road
Republica, CEP 01046-010 Lane 686, Wuzhong Road Dean Row Road Dubai Science Park, Al Barsha South Charlotte
Paulo
Cidade de Sao Shanghai 201 103 Wilmslow SK92TB, Cheshire P.O. Box 500 767 NC 28226
Jan 2017
Disclaimer: Information given in this guide is only for guidance without any responsibility on Atul Ltd (Atul). Results vary depending upon application and various other parameters | conditions for
which no guarantee or warranty is given by Atul. Atul will not be liable for any damage | loss which users may suffer.