Compression Molding
Get your low to mid-volume rubber products in as fast as 10 days.
From mold design, mold manufacturing, to the production of your rubber part. The whole process is done in-house, saving you money and time. Our facility is home to a multitude of different presses with varying tonnage. KC Seals can manufacture rubber products in diameters ranging all the way from 1/2 an inch to 16 inches, with a maximum height of 10 inches.
CAPABILITIES
SIZE LIMITATIONS
Although there is a wide range of part complexities we can manufacture, with our 150-350 ton vacuum presses, we have the ability to manufacture rubber products with outer diameters up to 16 inches, whereas, on the smaller scale, the parts can be as small as half an inch. Part height-wise, the product could be as long as 10 inches.
TOLERANCES
The table below shows the RMA “A2” tolerance standards which are commonly used in the Oil and Gas industry. The main reason why there is a need to use a tolerance range standard for a finished rubber product is simply the fact that all cured elastomers shrink differently while it is cooling off after the demolding process. Besides, the same material can shrink differently if the following process parameters are altered: Mold design (Transfer vs Compression molding), mold cavity pressure, different raw material batches, wall thickness of the product, etc.
MOLD MANUFACTURING
Setup fees are a major deterrent when looking to source your rubber products. That’s why we moved the whole mold manufacture process inside. Our fully equipped machine shop means significant cost savings for you, consistent quality, and guaranteed lead times. As well as the security that your IP will stay under one roof and not be shipped off to a machine shop you don’t know.
RUBBER TO METAL BONDING
With our abrasive media blasting chamber, custom made painting table and the experience of working with multiple different bonding agents. K.C. Seals is equipped to handle all your rubber to metal bonded products.
AVAILABLE MATERIALS
| Material Code | Description | Temperature Range | Tensile Strength | Elongation | 100% Modulus | Manufacturing service | Data Sheet |
|---|---|---|---|---|---|---|---|
| F7SD | Is a standard grade FKM 70 durometer | -15°C (5°F) to +204°C (+400°F) | 1982 psi | 240% | 721 psi |  | |
| F8SD | Is a standard grade FKM 80 durometer | -15°C (5°F) to +204°C (+400°F) | 2098 psi | 190% | 958 psi | | |
| F9SD | Is a standard grade FKM 90 Durometer | -15°C (5°F) to +204°C (+400°F) | 2197 psi | 152% | 1347 psi | | |
| FCR75E | FCR75E is a highly fluorinated Viton™ material that offers more chemical resistance than your standard FKM materials. | -15°C (5°F) to +204°C (+400°F) | 3200 psi | 300% | 840 psi | | |
| FE75E | Viton™ Extreme™ ETP combines the excellent thermal resistance of Viton™ fluoroelastomers with unique resistance to chemicals and environments that have historically exceeded the capabilities of conventional fluoroelastomers. | -15°C (5°F) to +225°C (+437°F) | 2828 psi | 257% | 1013 psi | | |
| FLT75E | FLT75E is a low-temperature Viton™ material. Exhibiting all the same characteristics of a standard FKM | – 30°C (-22°F) to +204°C (+400°F) | 2200 psi | 220% | 900 psi | |
| Material Code | Description | Temperature Range | Tensile Strength | Elongation | 100% Modulus | Manufacturing Service | Data Sheet |
|---|---|---|---|---|---|---|---|
| H6DS | H6DS is a standard grade 60 durometer hydrogenated nitrile compound. | – 30°C (-22°F) to 150°C (+302°F) | 3220 psi | 399% | 577 psi | | |
| H7DS | H7DS is a standard grade 70 durometer hydrogenated nitrile compound. | – 30°C (-22°F) to 150°C (+302°F) | 3360 psi | 290% | 1521 psi | | |
| H8DS | H8DS is a standard grade 80 durometer hydrogenated nitrile compound. | – 30°C (-22°F) to 150°C (+302°F) | 3420 psi | 198% | 2022 psi | | |
| H9DS | H9DS is a standard grade 90 durometer hydrogenated nitrile compound. | – 30°C (-22°F) to 150°C (+302°F) | 3890 psi | 140% | 3138 psi | | |
| H8DU | H8DU has superior resistance to compression set far better resistance to abrasion and performs very well in petroleum applications where standard HNBR materials may not hold up. | – 40°C (-22°F) to 160°C (320°F) | 4135 psi | 178% | 2370 psi | |
| Material Code | Description | Temperature Range | Tensile Strength | Elongation | 100% Modulus | Manufacturing Service | Data Sheet |
|---|---|---|---|---|---|---|---|
| N7DS | N7DS is a standard grade 70 durometer nitrile compound | – 40°C (-40°F) to 110°C (230°F) | 2430 psi | 404% | 590 psi | | |
| N8DS | N8DS is a standard grade 80 durometer nitrile compound | – 40°C (-40°F) to 110°C (230°F) | 2790 psi | 310% | 1120 psi | | |
| N9DS | N9DS is a standard grade 90 durometer nitrile compound | – 40°C (-40°F) to 110°C (230°F) | 3390 psi | 190% | 1685 psi | | |
| NLACN7DS | With low ACN and high plasticizer content this compound offers low-temperature flexibility down to -50°C | – 50°C (-60°F) to 93°C (200°F) | 1860 psi | 270% | 395 psi | | |
| NHACN7DS | A 70 duro high ACN content has excellent resistance to petroleum oils automatic transmission fluid and crude oil | – 25°C (-15°F) to 120°C (250°F) | 1940 psi | 340% | 410 psi | |
| Material Code | Description | Temperature Range | Tensile Strength | Elongation | 100% Modulus | Manufacturing Service | Data Sheet |
|---|---|---|---|---|---|---|---|
| A75E | A75E is a 75 durometer AFLAS® compound | – 5°C (25°F) to +230°C (+446°F) | 1550 psi | 355% | 750 psi | | |
| A95E | A95E is a 95 durometer AFLAS® compound | – 5°C (25°F) to +230°C (+446°F) | 3550 psi | 135% | 2870 psi | |
| Material Code | Description | Temperature Range | Tensile Strength | Elongation | 100% Modulus | Manufacturing Service | Data Sheet |
|---|---|---|---|---|---|---|---|
| E9DS | E9DS rubber (ethylene propylene diene monomer rubber) is a 90 durometer peroxide cured EPDM material characterized by its wide range of applications and good chemical resistance. | – 54°C (- 65°F) to 150°C (300°F) | 2400 psi | 300% | 1200 psi | |
