PVC is polyvinylchloride and comes in many different forms. These different forms modify the properties to suit particular applications. Plasticisers, stabilizers, and impact modifiers can be added to produce these modifications. In general, PVC offers excellent chemical and corrosion resistance. PVC offers a major advantage over many other corrosion resistant products because it can be solvent cemented. It can also be thermally welded. This versatility in fabrication is why PVC is so widely used.
The main types of PVC are:
Type I - Vintec I PVC
Vintec I is a normal impact, high corrosion resistant polyvinyl chloride (PVC) sheet. Because of its exceptional corrosion resistance, it is ideally suited for applications where maximum chemical reisitance is necessary. Its high strength-to-weight ratio, cost efﬁciency, ease of fabrication and economic balance make it the material of choice. Vintec I conforms to ASTM D-1784-03 Class 12454-B (Formerly Type I Grade 1) and is manufactured without the use of plasticizers or ﬁllers. It can be used in self supporting construction up to 140° F (depending on chemistry). It exhibits excellent ﬁre ratings (UL-94V-0) and has a ﬂame spread under 20 per ASTM-E-84. Vintec I is available in numerous colors, ﬁnishes and sizes.
FEATURES AND BENEFITS
- Strength Vintec I combines tensile strength and stiffness for the toughest applications.
- Chemical Resistance Vintec I is resistant to most acids and alkali solutions.
- Workability Vintec I can be machined, cut, welded and glued for fabrication versatility.
- Low Cost Vintec I is an economical choice for fabricating equipment, tanks, pumps etc.
- Consistency Vintec I is extruded through most of the available gauges for dimensional consistency.
- Flammability Vintec I is self extinguishing.
Type II - Vintec II PVC
Vintec II is a high impact, corrosion resistant polyvinyl chloride (PVC) sheet. Becauses of its excellent impact and ductility it is ideally suited for applications that require thermal forming or where the ﬁnished product is subject to shock or physical abuse. Vintec II conforms to ASTM-D-1784-03 Class 16444-D (Formerly Type II Grade 1) and is manufactured without ﬁllers or plasticizers. Its high heat deﬂection temperature and high modulus make it ideally suited for operation at temperatures up to 140° F with fewer supports than other Type II materials. Material conforming to former Type II classiﬁcation were only required to have an izod impact of 18 per ASTM-D-256. This allows the sheet to be cold rolled into large diameter cylinders for exhaust systems. Exceptional ﬁre ratings UL-94V-0 and ﬂame spread under 20 per ASTM-E-84 also enhance its position in this application.
Vintec II is available in numerous colors, ﬁnishes and sizes.
FEATURES AND BENEFITS
- Strength Vintec II is a high impact strength product; over 15 times the value
of standard PVC.
- Chemical Resistance Vintec II has good chemical resistance to acids, alkalis and fumes.
- Ductility Vintec II can be cold rolled for duct and ventilation applications.
- Formability Vintec II has excellent thermoforming and vacuum forming characteristics.
- Workability Vintec II can be cold rolled, formed, cut, shaped and welded.
- Consistency Vintec II is extruded for dimensional consistency.
- Flammability Vintec Ii is self extinguishing and it has a ﬂame spread of 20 according to ASTM E84.
Corzan CPVC is a high heat, corrosion resistant chlorinated polyvinyl chloride(CPVC) sheet. Because of its excellent corrosion resistance at elevated temperatures, it is ideally suited for self-supporting constructions where high temperatures are a concern. It can be used (depending on chemistry) up to 180° F. Corzan CPVC conforms to ASTM-D-1784-03 Class 24446-B (formerly Type IV Grade 1) and is manufactured without ﬁllers or plasticizers. It exhibits excellent ﬁre properties UL-94V-0 and ﬂame spread less than 20 per ASTM E-84. Corzan CPVC is a system approach which allows you, our customer (through numerous component manufacturers) to provide a totally integrated system, all produced from the same family of Corzan materials.
FEATURES AND BENEFITS
- System Compatibility Corzan is available in pipe, valves, ﬁtting and sheet to construct completely compatible systems.
- Machinable Corzan can be machined, cut, routed and welded.
- Flammability Corzan is self extinguishing and has a ﬂame spread of less than 20.
- Physical Properties Corzan has outstanding strength through a range of temperatures.
- Impact Corzan has excellent impact strength.
- Chemical Resistance Corzan has excellent chemical resistance to acids and alkalis.
Ultra high molecular weight polyethylene (UHMW-PE) exhibits the best properties of all the polyolefin family. Among its excellent properties are:
- Outstanding abrasion resistance
- Excellent lubricity
- High impact strength
- Zero moisture absorption
- Outstanding chemical and corrosion resistance
- USDA/FDA/NSF compliant
The family of polyethylenes vary in molecular weight, or densities, and exhibit varying degrees of properties. Other than UHMW, the main types of polyethylene are:
LOW DENSITY (LDPE) - LDPE offers chemical resistance, flexibility, translucency, and good thermoformability. Sheets are available "as extruded" or "stress relieved." In stress relieved, heat is applied after the extrusion process, thus providing a flatter sheet.
HIGH DENSITY (HDPE) - HDPE also offers good chemical resistance, but is stiffer and has greater compressive strength than LDPE. HDPE is USDA/FDA/NSF compliant. It is solid white and used in many food applications, including cutting boards. It is also available stress relieved.
This is another member of the polyolefin family. Compared to the polyethylenes, it is stiffer, has greater surface hardness, and greater compressive strength. Like the other polyolefins, it offers great chemical and corrosion resistance, It is often welded and used for plating barrels, tanks, and hoods. It can also be thermoformed and is used extensively as a prosthetic material. Polypropylene can also be pigmented white for aesthetic applications.