Industrial Polymers

Density	1.3 – 1.7 g/cm^3
Glass transition temperature	50 – 5 C
UV light resistance	Fair
Max continuous Service temperature	50 – 80 C
Min continuous Service temperature	40 – 5 C
Sterilization insulation (Repeated)	Poor
Thermal insulation (Thermal conductivity)	0.16 W/m.K

Drying before processing is highly recommended, moisture rate should be lower than 0.3%.

 

Injection molding :-

Melt temperatures should lie between 170 and 210 C.

Mold temperatures of 20 to 60 C are more suitable.

Mold shrinkage lie between 1 and 2.5%.

Extrusion:-

Extrusion temperatures are 10 – 20 C below injection molding temperature to avoid premature thermal degradation.

Applications-Key performances

Electrical

Cable and wire insulation . Flexibility

Plugs . Good electrical properties

Cable jackets . Low cost

Sockets

Cable heads

Distributes

Engineering

Gaskets . Flexibility

Stuffing boxes . Versatile performance profile

Pipes . Low cost

Hoses

Coatings

Protective caps for pipes

Building and construcion

Seals for windows and doors . Flexibility

Swimming bath linings . Good weathering resistance

Floor and wall coverings . Low cost

Roofing . Flame retardant

Doorstops

Wire coverings

Consumer goods

Toys . Flexibility

Handbags . Good weathering resistance

Tablecloths . Low cost

Cases . Processability

Sports & Leisures

Balls . Flexibility

Ski sunglasses seals . Good weathering resistance

Inflatable dinghies . Low cost

Footwear

Shoe soles . Flexibility

Boots . Good weathering resistance

Gardening

Garden hoses . Flexibility

.Good weathering resistance

. Low cost

Automotive

Car body seals . Flexibility

Dashboard skins . Good weathering resistance

Artificial leather seals . Low cost

Sun visors

Healthcare / Medical

Blood storage bags . Flexibility

Drainage tubes . Hemocompatible

 

Partially crystalline thermoplastics, POM – Polyacetal finds application during manufacturing of engineering precision parts, which require high stiffness, low friction and excellent dimensional stability. Mechanical properties of POM are determined by the degree of crystallization, which increases with the mold temperature. Similar to all crystalline polymers the follow-up pressure can be influential on the shrinkage of the part and a longer hold time is preferred to reduce shrinkage.

 

Injection Molding:

• Mold temperature of 50 – 120 C
• MFI (190C @ 2,16 kg) = 1 – 10 kg/10 min POM is suitable for injection of thin wall & complex parts, MFI (300 C @ 21,6 kg) of 13 – 65 g/10min

 

Extrusion:

• Extrusion mainly to produce semi-finished articles (round and flat rods, hollow rods, slabs) and can be carried out easily on single and multi screw extruders
• Extrusion temperature : from 180 to 220 C.
• A L/D ratio of 15 to 25 is recommended.
• MFI (190C @ 2,16 kg) = 1.3 kg/10min

We offer optimum quality SAN Styrene Acrylonitrile Copolymer, which is known for its greater thermal resistance. Widely used in manufacturing various appliances and parts for automotive, healthcare, gardening and other segments, it is offered at market leading prices to our clients. Improved weatherability, stress crack resistance, and barrier properties, higher strength, rigidity, and chemical resistance are some of the highlighting features of our SAN resins.

Strength

• High rigidity
• High impact resistance, easy process-ability
• High dimensional stability

Application:

• Automotive
• Appliances
• Health care and gardening

We are engaged in offering optimum quality PVC Suspension Grade, which finds host of application in construction industry for fabricating pipe, conduit, siding, window frames, door frames and others. Under the strict surveillance of our expert professionals, it is sourced from prominent vendors of the industry. Highly appreciated for accurate composition and purity, it melts at a temperature ranging between 150 to 200 C and molded at 15 to 40 C only.

 

Injection molding :

• Experience has shown screws normally used for injection molding of low density polyethylene to be satisfactory

 

Extrusion :

• A three- zone screw with a total L/D ratio of at lease 20 is recommended
• Melt temperature is, generally, in the overall range of 95 – 205 C
• The melt temperature depends upon the melt index of the resin, the % vinyl acetate and the part configuration

Primarily used in packaging industry, our Polythene- HDPE, LLDPE, LDPE, is derived by accurate composition and reaction of various carbons and its compounds. Based on its density and branching, this polythene is processed to form various categories like HDPE, LLDPE, LDPE and others. Extrusion is the most common process used for LDPE (tube, blow and cast films, cables) where as it can also be processed by injection molding or roto-molding.

Extrusion:

• Melt temperature : 180-240 C
• Higher melt temperatures are needed for extrusion-coating (280-310 C)
• A three zone screw with a L/D ratio of around 25 is recommended

 

Injection molding :

• Melt temperature : 160-260 C
• Post mold shrinkage lies between 1.5 and 3.5%

Our clients can avail from us high quality Polystyrene- HIPS, GPPS that easily gets molded between 30C to 50C. One of the most commonly used kind of plastics, this polystyrene can be casted into various molds with fine details. Owing to its distinctive properties, it is used to make diversified products including disposable cutlery, plastic models, CD & DVD cases, smoke detector housings and many more.

 

Injection Molding:

• Recommended melt temperature of 180-280 C
• For thin wall objects molded at short cycle times it could be useful to cool down the mold down to 10 C
• Mold shrinkage lies between 0.4 and 0.7% depending on the grade used

 

Extrusion :

• High viscosity grade are ideal for extrusion
• Melt temperature of 180-220 C
• Pre-drying for injection molding with a vented cylinder is not required, however if drying is needed then 4 hours at 80 C is sufficient
• Signs of moisture are stripes, streaks or bubbles

We are instrumental in offering highly resistive PMMA – Polymethylmethacrylate, which is an economical alternative to ploycarbonates. With normal cylinders pre drying of granules for up to 8 hours at 70-100 C is recommended whereas with vented cylinders, it can be processed without any drying. If damp granules are processed, they form surface defects and blisters. Sourced from leading manufacturers, it is appreciated by our clients due to its moderate properties, transparency, easy handling & processing, and low cost.

Injection Molding:

• Melt temperature : 200- 250 C
• Mold temperature : 40 – 80 C
• High injection pressures are needed because of poor flow properties and it may be necessary to inject slowly to get the correct flow

Extrusion:

• Extrusion temperature: 180 – 250C
• Recommended degassing screw with an L/D ratio of 20 –30

Our clients can avail PC Polycarbonate, which is appreciated for easy processing, molding and transformation. Often used for transparency, toughness and heat resistance, it finds application in chemical industry and for making engineering and commodity plastics. As attractive as plastic, this polycarbonate easily replaces glass and metal in applications where temperature does not exceed 125 C. Before processing, this polycarbonate is dried at 120C using appropriate dryers.

 

Strength :

• Optical clarity
• Impact strength
• Thermal resistance (up to 125 degrees)
• Food contact
• Flame retardant
• Weather-ability
• Bio-compact-ability
• Electrical conductivity

 

Applications:

• Packaging
• Sports and leisure
• Safety equipment
• Consumer goods
• Electrical and electronics
• Toys
• Construction glazing
• Optics
• Medicals
• Automotive
• Lightning and glazing

 

Processing temperature: 180 to 230 C

• Thermal damage may occur above 230 C unless the residence time in the cylinder is kept short
• High thermal stress during processing will result in the formation of formaldehyde (highly odorous)
• Pre-drying is not necessary but can be carried out at 110 C for 2 hours as the material has become moist or if the uniformity of the material needs to be improved

We are engaged in offering high quality ABS-Acrylonitrile-Butadiene Styrene, which is used to manufacture light and rigid molded products in multitude of industries such as musical instruments, automotive body parts, kitchen appliances, toys and many more. Derived mainly from carbon monoxide, ammonia and caprolactam, it should be dried before processing to maximum moisture content of 0.2% with drying temperature ranging between 80 to 110 C.

Specifications:

Injection Molding:

• Melt temperature of 210-270 C is recommended
• Mold temperature of 40-70 C is recommended

Extrusion:

• Extrusion temperature : from 210 to 240 C
• L/D ratio of 25-30 recommended

We are one of the leading names engaged in providing superior quality PA 6- Polyamide 6 that is offered at industry leading prices. Sourced from renowned vendors, it is known for high impact resistance, tensile strength, luster and ease of processing. Commonly known as Nylon 6, it is readily used in tire cord. PA6 remains thermally stable up to 310 C and as soon the temperature rises, its decomposition accelerates, forming initial products.

Injection Molding :

• A L/D ratio of 18 –22 is recommended
• Melt temperature : 240- 270 C
• Min temperature : 55 – 80 C

Extrusion:

• Only highly viscous grades can be processed by extrusion
• A three- sections screw with a L/D ratio of 20 – 30 is recommended
• The processing temperature should lie between 240 and 270 C