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Rubber Material-Based Diaphragms, Gaskets, O-Rings, Seals and Packings for Power Plants, Turbomachinery, Industrial Machinery Applications

Molded and Fabricated Nitrile Rubber (Buna-N), EPDM, Viton, Silicone, SBR, Natural Rubber, Polyisoprene NR, Sealing Parts

LPR Global provides custom Neoprene, EPDM, SBR, NR rubber tank strips, gaskets, diaphragms, O-rings, protective tubes, cable grommets, nylon sheets, insulation parts and additional sealing products for oil and gas, automotive, food, chemical, electronics, home appliance, construction, shipbuilding, power plant, steel mill, as well as nuclear applications.

We offer design, fabrication, reverse engineering, rapid prototyping, custom manufacturing and mass production and supply of both custom and off-the-shelf standard extruded, molded, and fabricated components.

Seals, gaskets and sheets are available in commercial grade, FDA grade, and are UL-certified. We have been supplying specialty products for nuclear applications.

Extruded rubber sheets and double-sided punched strip seals come in slit-to-width rolls of rubber with holes punched at precise uniform intervals.

Rubber sheets are available in from 0.4 mm thickness (0,01”) and up to 48” length and can be custom cut to a variety of strips and shapes. Rubbers sheets go through halogen treatment to prevents stickiness and ensure long service life.

Molded Rubber Parts- Gaskets, Diaphragms, Cable Grommets, O-Rings

Molded Rubber Parts– Diaphragms, Gaskets, O-Rings, Cable Grommets

LPR Global provides over 200 types of rubber molded parts to global customers.

As a leading manufacturer of molded rubber products, we offer an extensive set of tooling for a wide range of standard and custom shapes and profiles. Relying on our long history and experience, we are able to offer standard parts with some modifications and apply in-house manufacturing capabilities to adjust and modify the required part to meet your specifications. Our manufacturing facility is equipped with advanced high efficiency high shot volume equipment, including 200-ton vertical injection molding machines.

We supply gaskets, diaphragms and O-rings for a wide variety of equipment that operate in extreme environment and demanding applications, including valve, pump, heavy equipment, semiconductor and various power plant applications.

Our core technology is centered on in-house formulation of high-performance elastomers, developed through years of accumulated field data and real-world testing. We don’t just select materials—we design them from the ground up to meet the specific requirements of each environment. This allows us to engineer custom solutions that meet exact specifications for sealing pressure, chemical compatibility, and environmental durability.

Our production system is fully vertically integrated—from material mixing to final inspection—and supported by an AI-powered smart factory for real-time quality monitoring. This ensures consistent production, traceability, and fast adaptability to customer design changes or regulatory needs.

We operate advanced laboratory testing facilities, where our products undergo pressure, chemical, and thermal durability testing to guarantee long-term performance. Our elastomer technology has been successfully applied in some of the most challenging environments, including chemical processing plants and even nuclear power facilities, where sealing integrity under harsh conditions is critical.

Elastomers & Common Applications

LPR Global offers a wide range of elastomer materials tailored to diverse industrial environments and application-specific requirements. Depending on the operating conditions, We provide material options that deliver optimal sealing performance and durability. These elastomers are available in both standard and custom sizes to support OEM requirements, with options for extrusion, molding, and precision cutting. Our elastomer compounds are engineered to maintain flexibility, dimensional stability, and sealing integrity from -60°C to +250°C, even under mechanical stress or prolonged use.

	Industry	Material	Application Example
Power & Energy	Nuclear	FKM	O-Rings
	Thermal	FKM	Diaphragms
	Chemical	FFKM, EPDM	O-Rings, Gaskets
	Oil & Gas	HNBR, FKM, FFKM	Seals, Gaskets
Industrial Equipment	Valve & Pump	NBR, FKM, HNBR	O-Rings, Seals, Gaskets
	Pneumatic/Hydraulic	NBR, FKM	Packings, O-Rings
Heavy Machinery	Construction Machinery	HNBR, FKM	Seals, O-Rings
	Agricultural Machinery	NBR, EPDM	Gaskets, Seals
Transportation	Train	EPDM, NR	Rail Pads, Seals
	Automotive	FMK, NBR, Silicone	Gaskets
High-Tech & Defence	Semiconductor	FFKM (Plasma-Resistant), Silicone, PTFE	Gaskets, O-Rings, Sealing/ Packing
	Defense Industry	FKM, HNBR, Silicone	Rubber Treadmills
	Aerospace	FKM, FFKM, Silicone	Fuel System O-Rings, Heat-Resistant Gaskets
Life Science & Consumer	Food & Beverage	EPDM, NBR, Silicone (FDA Grade)	Processing Equipment Seals, Gaskets
	Medical Devices	Silicone, FKM, FFKM (Medical Grade)	Pump Diaphragms, Gaskets, Sealing Parts

Elastomer Characterstics

Material	Code	Compression Set Resistance	Hardness (Shore A)	Tensile Strength (psi)	Elongation	Max Temperature	Resilience
Isobutylene Isoprene / Butyl	IIR	Good	30-100	2000+	300-800	120℃	Excellent
Chloroprene / Neoprene	CR	Fair-Good	40-95	2000-3000	650-850	120℃	Excellent
Styrene Butadiene	SBR	Good	40-100	2000+	400-500	100℃	Good
Ethylene Propylene	EPDM	Fair	30-90	1500-3000	200-800	140℃	Good
Fluorocarbon	FKM	Good-Excellent	50-95	1500-3000	100-450	250℃	Fair
Fluorosilicone	FVMQ	Fair-Good	35-80	350-850	100-900	200℃	Good
Nitrile	NBR	Good	20-90	1000-3500	400-600	100℃	Good
Hydrogenated Nitrile	HNBR	Excellent	30-95	1500-3500	90-550	150℃	Good
Epichlorohydrin	ECO	Fair-Good	30-95	1500-2000	300-400	125℃	Good
Silicone	VMQ	Good-Excellent	25-90	600-1500	90-900	230℃	Poor-Excellent
Natural Rubber	NR	Good	30-100	4000+	300-500	80℃	Excellent
Polyurethane	AU/ EU	Fair	60-100 45-75 (Durometer D)	3000-9000	270-800	90℃	Good
Acrylic Rubber	ACM	Poor	40-90	500-2500	100-450	150℃	Fair
Ethylene Acrylate	AEM	Good	35-95	500-3000	200-850	150℃	Good
Perfluorocarbon	FFKM	Good	65-95	1250-3600		325℃	Fair

Standard and Custom Diaphragms for Compressors, Valves, Pumps, Flow Meters

Comprehensive Range of Elastomers

Comprehensive selection of standard fabric styles, each with specific physical characteristics based on weave patterns, tensile strength, formability and chemical and heat resistance capabilities.

Our engineers are available to help clients choose the proper fabric and material for a specific application.

Diaphragm Fabric Materials

A key factor that determines the properties of the diaphragm is the fabric type. We provide a comprehensive selection of standard fabric styles, each with specific physical characteristics suitable for differing applications.

With extensive experience supplying to a wide variety of industries, our engineering team can provide suggestions for fabric selection based on the operating environment.

Fabric	Tensile Strength	Maximum Temperature	Fabric Gauge (mm)	General Physical Properties
Cotton	Fair	170°C	0.3~1.1	Weak acids resistance, excellent organic solvents resistance
Polyester	Fair	170°C	0.3~1.0	Light weight, general purpose, high stability
Polyamide (Nylon)	Excellent	200°C	0.2~0.7	High strength, high temperature, good abrasion resistance
Polyaramid (NOMEX)	Excellent	260°C	0.3~0.8	High temperature, mildew resistance
Polyaramid (KEVLAR)	Excellent	400°C	0.3~1.1	Extreme temperature, extreme strength
Ntrile coated Polyester	Fair	120°C	0.3~1.0	Good formability
Nitrile coated Nylon	Good	120°C	0.2~0.7	High strength, good formability
FKM coated Polyester	Fair	150°C	0.3~1.0	Good chemical resistance
EPDM coated Polyester	Fair	140°C	0.3~1.0	General purpose, high stability
EPDM coated Nylon	Good	120°C	0.2~0.7	Special purpose, high strength, high stability

Gaskets for Piping Systems, Engines, Flanges, Processing Equipment

We provide standard and custom gaskets in NBR, EPDM, CR, FKM, Silicone, compressed fiber materials depending on the pressure, temperature, and chemical resistance characteristics requested by our clients.

Our gaskets are widely used in piping systems, engines, flanges, and processing equipment in oil & gas, petrochemical, HVAC, and marine applications.

O-Rings | NBR (Buna N/ Nitrile Rubber), FKM, EPDM, FFKM

We provide O-ring with a variety of materials that meet the requirements of a wide range of sealing applications, such as chemical compatibility, temperature compatibility, sealing pressure, durometer, size, and cost.

We can also offer custom solutions to meet additional requirements such as electrical properties, dynamic resistance, tear resistance and ozone resistance.

Our standard and custom-sized O-rings are used in hydraulic and pneumatic systems, pumps, compressors, and connectors across automotive, aerospace, food & beverage, and industrial machinery sectors.

Other Rubber Products

Rubber Cloth-Inserted Sheets, Hole Punched Tank Strips

Rolled Rubber Sheets and Tank Strips

LPR Global offers high-quality rubber products for the industrial, petrochemical and chemical, oil & gas, food processing, automotive, home appliance, paper, mining, steel, electronics, power generation applications.

LPR Global offers custom Neoprene, EPDM, SBR, NR rubber tank strips, nylon sheets, and insulation parts for oi l& gas, automotive, food, chemical, electronics, home appliance, construction, and shipbuilding applications.

Extruded rubber sheets and double-sided punched strip seals come in slit-to-width rolls of rubber with holes punched at precise uniform intervals.

Rubber sheets are available in from 0.4 mm thickness (0,01”) and up to 48” length and can be custom cut to a variety of strips and shapes. Rubbers sheets go through halogen treatment to prevents stickiness and ensure long service life.

Insertion Rubber Sheet

We offer 490 combinations of rubber sheets in trimmed rolled rubber sheets of 36″-48″ width as standard rolls. The thinnest available fabric reinforced rubber sheets with insertion are 0.4mm thick. Rubber sheets go through halogenation treatment process to ensure durability, even thickness, and to prevent stickiness. EPDM rubber sheets are used in the toughest industrial environments and in chemical resistance requiring applications.

Insertion Rubber Sheet Properties

Features: dust-proof, sound absorption and oil-resistance
Available color: black; other colors available per request
Thickness: 1/64” ~ 2″
Length: 25ft ~ 100ft
Width: 36~48″
Length, hardness, and color can be customized
Materials: EPDM, Neoprene, NBR, SBR, Silicone, Butyl, Viton, Hypalon, Gum, IRC Nylon

Special Rubber Sheet

Heat, chemical, weather, abrasion, oil-resistant rubber sheets are used for gasketing, packaging, and insulation applications.

Cloth-Inserted Rubber Sheet

Cloth-reinforced Neoprene(CR) and NBR rubber sheets improve material stability and ensure product durability.

Types of Inserted Cloths:

Cotton Fabric: 2~3 Oz, 8 Oz
Nylon Chafer: 450d/1, 840d/1, 1,890d/1
Belt Paper: EP125, NN#200
Materials: Neoprene(CR), NBR, EPDM, SBR

Water-Proof Rubber Sheet

EPDM water resistant membranes is a single-ply membrane provide excellent resistance to heat, steam, water; ensure durability and are used in a number of various applications from construction to food industries.

Types of Water-Proof Sheets: TEP(TPO), EPDM, CSM (Hypalon)
Pattern: one-sided, one-sided pattern, two-sided pattern
Thickness: 1 / 1.2 / 1.5 / 2.0 mm

Flame-Resistant Rubber Sheet

Neoprene fire-resistant rubber sheets prevent melting, dripping, and fire spread. Flame-retardant sheets meet international fire-resistance standards and have passed U.K. Warrington fire research and Korean Railroad research approval processes.

Fire retardant grade: UL 94-V0
Thickness: 1 ~ 25

Anti-Static Rubber Sheet

NBR high density technical grade anti-static rubber sheets are commonly used in the electronics and industrial plant applications for dissipating static or electrical charges.

Electric resistance: cover 107~109Ω/cm², Bottom 10³~105Ω/cm²
Thickness: 2 ~ 5mm

Corrugated Rubber Mat

SBR / IR footpath mats are used in high traffic areas including plant hallways, in-plant aisles, and construction sites.

Fire-retardant insulation
Thickness: 3 ~ 5 /20mm
Non-slipping flooring materials
Available colors: Black, Green, Blue, Red

Commercial, Premium, High Grade General and Specialty Rubber Sheets

Rubber Tank Strips with Punched Holes

EPDM, CR, NBR fuel tank seal strips are produced using microwave curing process. The strips feature strong plasticity, good elasticity, and resistance to compression, chemicals, aging, and ozone.

Fuel tank strap rubber seal gaskets come in 1.77″ width rubber strips with punched holes at regular intervals. The rubber tank strips are used as liquid tank gas sealants for prevention of metal-to-metal wear between the straps and gas tank due to vibrations. They are used in various industries, including food, chemical, and oil storage.

Product Features | Thickness, Hole Shape, Spacing, Materials

Punching thickness is between 1/16~1/14”. This process can be applied to thinner and thicker materials depending on client’s requirements.

Standard and custom oval, square, or alternate hole shapes are available. Slit-to-width rubber rolls without any holes are available as well and vary between 25 and 300 foot lengths.

Dimensional tolerances run around +/-.015 inches for key dimensions: width and hole diameter.

Available materials: Nitrile (Buna-N), EPDM, Silicone, Viton, non-rubber gasket sheeting.

Molded Rubber Parts

We supply over 200 types of rubber molded parts globally. As a leading manufacturer of molded rubber products, we offer an extensive set of tooling for a wide range of standard and custom shapes and profiles. Relying on our long history and experience, we are able to offer standard parts with some modifications and apply in-house manufacturing capabilities to adjust and modify the required part to meet your specifications.

Industrial grade gaskets for machinery and plant applications for abrasion prevention. Produced using either rubber sheet punching method or compression molding. Molded sealings are available.

Diaphragms are flexible seals used for prevention of unwanted transmission of substances (liquids, gasses, steam, chemicals) between two sections of production and processing automotive, home appliance, oil&gas, and medical equipment. They are formed into flexible materials and forms.

Cable grommets for dust and water leakage prevention are available in two types: 1) GD&GDM, complies with the UL 94 V0 standard for the highest grade of the fire-retardant material classification. 2) EPDM cable grommet for reliable insulation and weather resistance insulation.

High pressure Buna (Nitrile), EPDM, Viton O-rings in standard and custom configurations for ultimate high sealing performance in the demanding applications: OEM, food and beverage, aerospace automotive, home appliance, chemical, and oil&gas.