Vacuum Cups and Suction Cups Information and Use Chart
Elastomer or Rubber Material Guide

Overview of Materials used in ANVER Vacuum Cups

Material Name
Shore A
+ / – 5
Range **
Oil, Grease
Typical Color
(Depends on
Cup Style)
For most General Purpose Industrial Applications
NBR Nitrile
40 – 60 -40° to +230°F
(-40° to +110°C)
Black, Blue, Grey

NBR is an excellent all around material for general industry. High overall value due to its top performance in many categories. Our proprietary blend which features the latest name brand ingredients have greatly increased the performance of this proven material.

CR, NEO, NE, N50 Neoprene
40 – 60 -40° to +230°F
(-40° to +110°C)
Blue, Red or Black

CR, NEO, NE, N50 is an excellent hard wearing all around material for general industry with a nice rubber feel and memory.

PUR Polyurethane
30 – 65 -13° to +176°F
(-25° to +80°C)
Blue, Green, White
all colors

Anverflex PUR is a new proprietary blend which is tough, and long wearing. It is non-marking and is long lasting as pressure and heat is used to cure – vulcanize the material in the molding process. Suitable for many applications where heat is not a factor. Shiny gloss finish.

For High Heat, Non-Marring Packaging and Food Use
Mat. Code Common Name Hardness Temp. Wear Oil, Grease UV / Weather Typical Color
SIT Silicone 40 – 60 -94° to +600°F
(-70° to +316°C)
Translucent Clear

SIT is excellent for high heat or food packaging. Soft and pliable, meets FDA Title 21 and German spec. BGVV (BGA) Part XV for contaminant-free load handling. Contains no dyes that can leach out when handling baked goods, drugs, glassware, hot products from molds, etc. Our new formulation minimizes almost completely the yellowing with age which use to occur with clear silicone in the past.

SI Standard Silicone 40 – 60 -94° to +392°F
(-70° to +200°C)
Solid White,
Orange, Red
Extreme High Heat Silicone 40 – 60  -94° to +500°F
(-70° to +260°C)
 Orange, Red

SI is excellent for high heat applications such as mold part removal or where heat resistance is required for large cups/seals. Silicone is also a good choice for cold outside applications as it stays fairly soft to lower temperatures than Nitrile or Neoprene. DEHP and BPA free.

S45, S60 Silicone 40 – 60 -58° to +401°F
(-50° to +205°C)
Orange, Red

S45 is excellent for EOAT high heat applications such as mold part removal from plastic injection machines requiring a soft touch. Higher durometer for bellows cups.

Metal Detectable
40 – 60 -94° to +600°F
(-70° to +316°C)
Brown, Tan
Brownish Red

MD is a unique Silicone formulation made specifically for high heat applications in the baking food industry. This special rubber blend is designed for use with metal detection equipment used to safeguard food from metal objects as it is conveyed down the line.

Metal Detectable
Silicone – Blue
40 – 60 -76° to +392°F
(-60° to +200°C)
MDB is a unique Silicone formulation made specifically for high heat applications in the baking food industry. This special rubber blend is designed for use with metal detection equipment used to safeguard food from metal objects as it is conveyed down the line.
For the Printing,  Paper and Wood Industries
NR Natural (Gum)
35 – 50 -40° to +176°F
(-40° to +80°C)
Tan, Grey, Green,
Orange or Black

NR is widely used and specialized for the printing, paper, and wood industries. It is low cost, non-marking, wears well and has a natural negative charge which allows it not gum up with ink or cut paper dust. While great for picking paper sheets up this is basically the same material used in rubber bands and is not suitable for general use. This material does not respond well to UV light, ozone, chemicals, oils, water etc.

Specialty Elastomers 
Mat. Code Common Name Hardness Temp. Wear Oil, Grease UV / Weather Typical Color
ESD Electro-Static
Dissipative NOMASTAT®
50 – 60 -76° to +401°F
(-60° to +205°C)

Electro-Static Dissipative Nomastat® ESD is a specialized proprietary rubber that can handle heat and is static dissipative for any industry where static buildup is a problem or explosion proof requirements exist. Applications are typically in the electronics, high tech, automation, packaging and printing industries. It actually bleeds any static build-up out through a ground of the machine or other ground designed into the system. Neutralized additives are blended in a special elastomer blend to diffuse static buildup. This elastomer blend has a insulating static-dissipating value of 97K  *CM  @  500 Volts.

TPU Thermal 
75 -13° to +176°F
(-25° to +80°C)
Translucent Brown, Green, Black
(Darkens w/ Age)

TPU is an extremely tough material which darkens with UV exposure. It is sold under various proprietary trade names and the main market is hard caster wheels. We use TPU in static press applications such as bottle gripper bladders but rarely on cups anymore. We found it long wearing in static applications but usually too expensive to justify its use in vacuum cups which flex a great deal.  To compensate for the material’s hardness, cups using this material must be designed with thinner walls which break down faster. While initially promising a few years ago, TPU’s expense, hardness, lack of memory have proven to far outweigh its increased wear performance over other recently improved materials.

FPM Viton®
60 – 65 -4° to +482°F
(-20° to +250°C)
Black, Blue

FPM is specialized for high heat jobs. It is best for static compression applications and has a stiff, somewhat dead feel for vacuum cups. It is also relatively expensive which limits its vacuum cup use. The newer High Heat Silicones have replaced Viton for most applications.

VYL Vinyl*** 30 – 70 +32° to +158°F
(0° to +70°C)
Clear Base
Blue or other colors

VYL is soft, low cost, and readily available in many grades for general light-duty or household use. Poured vinyl’s or the clear vinyl used for push-on type suction cups are not suitable for industrial use. Vinyl will work for push on cups but they break down if repeatedly used for vacuum cups used in automation as they do not have good memory, tensile strength or mechanical properties.. Vinyl also handles heat poorly. The injection molded blended vinyl ANVER uses in its industrial vacuum cups is better, but you loose a key advantage of low cost to other materials.

50 – 70 -32° to +356°F
(-0° to +180°C)
Blue, Purple
or other colors

NM is a new ANVER proprietary material which is non marking yet high wearing even in hot conditions. It is a silicone-free hybrid blend which is non marking and will not leave any residue, mold release agent or ghost-mark on products which need to be painted after handling. This material also handles high temperature and is extremely long wearing making it ideal for the plastic injection mold tooling (EOAT) industry. While not inexpensive this material is priced similar to other top quality urethanes but it offers higher overall value due to its excellent performance. In many applications where heat and non-marking are issues, NOMATHANE® is the best blend available on the market.

50 or 60 -32° to +356°F
(0° to +180°C)
Light Green (NM50)
Dark Green (NM60)

A custom formulation of the above NOMATHANE® – NM50 contains 50 Duro NOMATHANE® and NM60 contains 60 Duro NOMATHANE®. Both materials are an excellent choice when handling slick, slightly oiled panels found in hot press operations.

-40° to +176°F
(-40° to +80°C)
Varies with style

AR is an ANVER proprietary foam material which is durable yet soft. Featuring a wide selection of profile types and materials, ANDURASOFT® is designed to handle moderately rough materials such as sawn stone, textured plastic, fiberglass mat and saw cut wood surfaces.



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Click here to help determine the right suction cups for your material handling application
How to Select the Right
Suction Cup for Your Material
Handling Applications



ANVER® Proprietary Designed Elastomer Materials for Vacuum Cups and Suction Cups
Our success as a leader and innovator in Vacuum Technology is due to the many important advances that we have made and continue to make in the selection of the elastomers used in our Vacuum Cups. Our cup quality is world class.


What is an Elastomer Vacuum Cup?
An elastomer is any type of polymer that has rubber-like properties of which there are dozens of material names. An elastomeric compound, consisting of a blend of a base polymer and other ingredients, is a material that has been designed to meet specific functional requirements.

The thing to keep in mind is that while a material may be excellent in another application or industry that does not mean it makes a good vacuum cup. A vacuum cup needs to flex yet have good elasticity, memory, wear resistance, heat and tear resistance, etc. Every cup type requires the right blend of ingredients to achieve this.

Thus a Vacuum Cup is only as good as its specific recipe or mixture of elastomeric compounds. The more expensive materials, available from the chemical product market leaders, usually result in the highest quality product consistency, which is why we stick with only ingredients from these suppliers. Each compound listed below is a specific blend of approx. a dozen line items, not a single ingredient as many people have come to believe. The following ingredients make up a typical Vacuum Cup formulation:

  • Polymers – the basic gum-like component of a compound, provide certain chemical and mechanical properties in the final product.
  • Fillers – reinforcing agents that enhance chemical and mechanical properties; adding carbon for example
  • Vulcanization agents – to cross-link the polymers.
  • Accelerators – to modify the rate of vulcanization.
  • Activators to initiate the vulcanization.
  • Plasticizers – to soften or improve processing.
  • Processing aids – to ease handling during mixing, extrusion, calendaring, or molding; and various mold release agents, sprays etc.
  • Age-resistors – to reduce or retard aging. Keep in mind that all rubber products have a defined working shelf life.
  • Miscellaneous ingredients such as blowing agents, pigments, retarders and odorants, all have specific purposes but are not necessarily required.
  • Mold Release Agents – Sprayed into the molds as needed. These can be are source of contamination so application and type used is critical.

Consistent Quality Control
At ANVER, we take measures to control quality throughout every phase of the development process. By specifying the highest quality ingredients, auditing incoming raw materials, establishing good relationships with our suppliers, and insisting on quality and uniformity in the goods we purchase, we can ensure the consistency of our elastomeric Vacuum Cups, from initial development to final production. You will find that all of our vacuum cups offer high quality and top value in every market segment.


ANVER Offers a Huge Selection of Vacuum Cups and Suction Cups
Click here
to see our huge
selection of suction cups

Various cup designs have different Durometers. Also note that a variance of +/- 5 in Shore Hardness or Durometer is the industry standard for all rubber products.


The maximum temperature given is always for a momentary pick and place lift and not for a constant attach situation. If a cup is held on a hot load for a longer period of time its temperature ability is reduced and it will deteriorate faster.


Some materials such as Urethane or Vinyl have more general names which is like saying Rubber or Plastic.  Within that name there are dozens of types and grades and it is difficult to make comparisons. For example, Vinyl is used for children’s toys, wall hanging cups, soap dish mounts, but also high end products. It is often difficult to determine the quality you are receiving. We have found that only injection molded, pressurized and vulcanized vinyl is suitable for industrial-duty vacuum cups.

We mold with many other specialty materials, including Ethylene Propylene Diene Methylene (EPDM). Contact the factory for details.
Viton® is a registered trademark of DuPont Dow Elastomers.

ANVER Material Durometer Range

Chemical Resistance • Materials Used in Vacuum Suction Cups
For a general chemical resistance guide,see DuPont Chemical Resistance.