INNOVATION PRODUCT

Max H-PUR

Available colors:

Polyurethane sealing materials

MAX H-PUR – Innovative Next-Generation Polyurethane for Sealing Applications

Max H-PUR is a high-performance polyurethane material, engineered using advanced chemical components and cutting-edge manufacturing technology to meet the most demanding requirements in the sealing industry. It combines versatility, exceptional quality, and outstanding performance characteristics, making it a superior choice compared to conventional polyurethanes for seal manufacturing.

Key Advantages of Max H-PUR

Wide operating temperature range

From -25°C to +150°C, maintaining flexibility, shape stability, and sealing integrity even in extreme conditions.

Self-lubricating properties

Special polymeric additives reduce the coefficient of friction (μ < 0.2), prevent the stick-slip effect, and ensure smooth operation in dynamic sealing applications.

Excellent wear and chemical resistance

Resistant to hydrolysis, oils, aggressive fluids, compatible with biodegradable lubricants, and capable of performing in wet and underwater environments.

FDA compliance

selected grades (red, blue, natural) meet FDA CFR 177.2600 standards for food contact applications in the food and beverage industry.

Shape recovery

low compression set ensures long-term sealing performance and durability.

Applications

Max H-PUR is ideal for the most demanding sealing applications, including:

RESISTANCE MAX H-PUR ELASTOMER

Good resistance

Hydraulic fluids based on mineral oil

Biologically degradable hydraulic
fluids

Fire-resistant pressure fluids HFA and HFB

Mineral oils and grease (certain additives can have destructive effects)

Silicone oils and grease

Aliphatic hydrocarbons (e.g. propane, butane)

Hot water and sea water up to +90°С

Diluted acids and basis

Average resistance

Fire-resistant fluids of type HFC (water glycol mixture)

Some additives for power can have destructive effect (e.g. fungicides)

Ethanol

Non-ethanol fuels (except premium blend petrol and unleaded fuels)

–

Low resistance

Aromatic hydrocarbons

Chlorinated hydrocarbons
(dichloromethane, trichloromethane)

Ketones and glycols

Break fluids, based
on glycol

Hot steam exceeding +100°С

Concentrated acids and basis

–

Max H-Pur Material Data Sheet

Properties

Value

Unit

Standard

Hardness at 20°:

95 +/-3

Shore A

DIN 53505

Hardness at 20°:

45 +/-3

Shore D

DIN 53505

Density:

1,21

g/cm³

DIN ISO 1183-1

100% Modulus:

>11.5

N/mm²

DIN 53504

300% Modulus:

>28.5

N/mm²

DIN 53504

Tensile strength:

>45

N/mm²

DIN 53504

Elongation at break:

>370

DIN 53504

Rebound resilience:

>28

DIN 53512

Tear strength:

>100

N/mm²

DIN ISO 34-1

Abrasion:

<16

mm³

DIN 53516

Coefficient of friction (dyn.):

<0.2

ASTM D1894

Compression set:*

<17

ISO 815-1

Compression set:**

<21

ISO 815-1

Compression set:***

<84

ISO 815-1

Min. service temperature:

-25

°C

–

Max. service temperature (short term):

+150 (+165)

°C

–

g Glass Transition Temp.:

-24

°C

–

*Compression set @ 70°C, 24 hours
**Compression set @ 100°C, 24 hours
***Compression set @ 150°C, 24 hours

All above established data results from random tests which were taken from the functioning production. All data was stated based on standard test-products in accordance with ISO, DIN and ASTM standards and can substantially not be extended to the completed seal. Our practical technical recommendation, either oral, written or through tests is given in conformity with our best knowledge. However, this data is to be regarded as non-obligatory advice, also taking into consideration any protective rights of a third party, and does not acquit you from making tests with our product in relation to its adaptability for the assigned process and intendment. Utilization, application and processing of the products befall completely outside of our control and are therefore solely your liability. As regards the responsibility, it will be limited to all damages in the value of the product which we delivered and you applied. Certainly, we do assure the immaculate quality of our products in concordance with our general sales and delivery conditions.

TEST ALPANA QUALITY

We take pride in our seal-making raw materials and are ready to offer samples of our semi-finished products. For testing, we provide our most popular materials, including the Max series of polyurethanes: H-Pur, SH-Pur, XSH-Pur, XH-Pur—as well as rubber bushings: NBR, FKM, H-NBR, EPDM, and MVQ!