Injection Molding
Tooling and molding for your repeat plastic parts.
YOUR FULL FKM COMPOUND. YOUR CHEMICAL. YOUR FINISHED SEAL.
FKM Material for Your Custom Parts
Plan custom FKM parts and custom FKM seals around the exact compound, cure, chemical exposure and finished fit. For FKM rubber molding, agree supplier product, tooling, post-curing when required, approved sample and inspection before comparing quotations.
This is a compound purchasing guide. Rubber molding, sheet cutting, bonding and specific material availability require drawing review; no blanket chemical or regulatory approval is implied.
Full CompoundKeep formulation, cure and batch.
Compound & CureSpecify the delivered condition.
Exposure & FitDefine media, movement and interfaces.
Your ApprovalAgree dimensions and function.
4 Starting Points for Your FKM Review
Molded Precision Seals
For your FKM compression molding or other qualified rubber route, review sealing lips, parting lines, full compound and supplied cure condition.
Complex Molded Components
Agree the actual gum or precompound, formulation, tooling and flow-sensitive features. A polymer trade name does not approve a finished component.
Rubber-to-Metal Components
Review elastomer and metal, surface preparation, cure, interface geometry and representative bond acceptance together.
Diaphragms & Flexible Parts
Review media, temperature, pressure, movement and mating features. Confirm exact compound and manufacturing availability for your drawing.
Review Your Full Product and Finished Compound
Review VITON A-201C for Your Drawing
For a VITON A-201C custom parts quote, retain the full curative-containing precompound and the separately controlled final formulation. VITON A 201C shorthand does not specify filler, cure, color or finished-part acceptance.
| Your decision | What to confirm |
|---|---|
| Material identity | Full raw product plus controlled compound and batch |
| Delivered condition | Cure system and supplied condition |
| Acceptance | Tooling, sample, dimensions and function |
Confirm the Supply Form
Gum, curative-containing precompound, controlled compound and cured part require distinct purchasing evidence.
| Your decision | What to confirm |
|---|---|
| Gum or Precompound Into a Controlled Formulation | Specify the full FKM rubber material, whether it is a gum or curative-containing precompound, the compounding source and final formulation. Retain cure system and supplied condition; neither trade name nor color identifies the complete compound. |
| Cured Stock or Finished Components | For sheet, molded and bonded parts, retain the exact compound, cure and post-cure state, lot, drawing and finished-part evidence. A supplier raw-product table is not a finished seal certificate. |
Agree Your Finished Fit
Review the actual assembly and measuring state.
| Your decision | What to confirm |
|---|---|
| Seal interfaces | Groove, squeeze, motion and mating surface |
| Exposure | Media, temperature, time and load |
| Measurement | Support, critical dimensions and agreed method |
Retain Product and Part Records
Material documents and finished-part approval serve different purposes.
| Your decision | What to confirm |
|---|---|
| Identity | Manufacturer product, color, batch and supplied condition |
| Drawing | Critical dimensions, sealing edges and appearance |
| Function | Approved sample and specified tests |
Review VITON B-600 for Your Drawing
For a VITON B-600 custom parts quote, identify the full gum polymer and approved compounding system. VITON B 600 raw-polymer information is separate from the full cured compound and application evidence.
| Your decision | What to confirm |
|---|---|
| Material identity | Full raw product plus controlled compound and batch |
| Delivered condition | Cure system and supplied condition |
| Acceptance | Tooling, sample, dimensions and function |
Confirm the Supply Form
Gum, curative-containing precompound, controlled compound and cured part require distinct purchasing evidence.
| Your decision | What to confirm |
|---|---|
| Gum or Precompound Into a Controlled Formulation | Specify the full FKM rubber material, whether it is a gum or curative-containing precompound, the compounding source and final formulation. Retain cure system and supplied condition; neither trade name nor color identifies the complete compound. |
| Cured Stock or Finished Components | For sheet, molded and bonded parts, retain the exact compound, cure and post-cure state, lot, drawing and finished-part evidence. A supplier raw-product table is not a finished seal certificate. |
Agree Your Finished Fit
Review the actual assembly and measuring state.
| Your decision | What to confirm |
|---|---|
| Seal interfaces | Groove, squeeze, motion and mating surface |
| Exposure | Media, temperature, time and load |
| Measurement | Support, critical dimensions and agreed method |
Retain Product and Part Records
Material documents and finished-part approval serve different purposes.
| Your decision | What to confirm |
|---|---|
| Identity | Manufacturer product, color, batch and supplied condition |
| Drawing | Critical dimensions, sealing edges and appearance |
| Function | Approved sample and specified tests |
Review VITON F-605C for Your Drawing
For a VITON F-605C custom parts quote, retain the complete curative-containing precompound and formulation. VITON F 605C shorthand does not establish universal chemical compatibility or finished seal properties.
| Your decision | What to confirm |
|---|---|
| Material identity | Full raw product plus controlled compound and batch |
| Delivered condition | Cure system and supplied condition |
| Acceptance | Tooling, sample, dimensions and function |
Confirm the Supply Form
Gum, curative-containing precompound, controlled compound and cured part require distinct purchasing evidence.
| Your decision | What to confirm |
|---|---|
| Gum or Precompound Into a Controlled Formulation | Specify the full FKM rubber material, whether it is a gum or curative-containing precompound, the compounding source and final formulation. Retain cure system and supplied condition; neither trade name nor color identifies the complete compound. |
| Cured Stock or Finished Components | For sheet, molded and bonded parts, retain the exact compound, cure and post-cure state, lot, drawing and finished-part evidence. A supplier raw-product table is not a finished seal certificate. |
Agree Your Finished Fit
Review the actual assembly and measuring state.
| Your decision | What to confirm |
|---|---|
| Seal interfaces | Groove, squeeze, motion and mating surface |
| Exposure | Media, temperature, time and load |
| Measurement | Support, critical dimensions and agreed method |
Retain Product and Part Records
Material documents and finished-part approval serve different purposes.
| Your decision | What to confirm |
|---|---|
| Identity | Manufacturer product, color, batch and supplied condition |
| Drawing | Critical dimensions, sealing edges and appearance |
| Function | Approved sample and specified tests |
Review DAI-EL G-801 for Your Drawing
For a DAI-EL G-801 custom parts quote, retain the exact peroxide-curable copolymer, full formulation and current supplier instructions. DAI EL G 801 shorthand must be resolved to a complete product before approval.
| Your decision | What to confirm |
|---|---|
| Material identity | Full raw product plus controlled compound and batch |
| Delivered condition | Cure system and supplied condition |
| Acceptance | Tooling, sample, dimensions and function |
Confirm the Supply Form
Gum, curative-containing precompound, controlled compound and cured part require distinct purchasing evidence.
| Your decision | What to confirm |
|---|---|
| Gum or Precompound Into a Controlled Formulation | Specify the full FKM rubber material, whether it is a gum or curative-containing precompound, the compounding source and final formulation. Retain cure system and supplied condition; neither trade name nor color identifies the complete compound. |
| Cured Stock or Finished Components | For sheet, molded and bonded parts, retain the exact compound, cure and post-cure state, lot, drawing and finished-part evidence. A supplier raw-product table is not a finished seal certificate. |
Agree Your Finished Fit
Review the actual assembly and measuring state.
| Your decision | What to confirm |
|---|---|
| Seal interfaces | Groove, squeeze, motion and mating surface |
| Exposure | Media, temperature, time and load |
| Measurement | Support, critical dimensions and agreed method |
Retain Product and Part Records
Material documents and finished-part approval serve different purposes.
| Your decision | What to confirm |
|---|---|
| Identity | Manufacturer product, color, batch and supplied condition |
| Drawing | Critical dimensions, sealing edges and appearance |
| Function | Approved sample and specified tests |
Review DAI-EL G-802 for Your Drawing
For a DAI-EL G-802 custom parts quote, retain this exact product and agreed compound. G-801 and G-802 are different grades; common fluorine content does not approve substitution or the same processing route.
| Your decision | What to confirm |
|---|---|
| Material identity | Full raw product plus controlled compound and batch |
| Delivered condition | Cure system and supplied condition |
| Acceptance | Tooling, sample, dimensions and function |
Confirm the Supply Form
Gum, curative-containing precompound, controlled compound and cured part require distinct purchasing evidence.
| Your decision | What to confirm |
|---|---|
| Gum or Precompound Into a Controlled Formulation | Specify the full FKM rubber material, whether it is a gum or curative-containing precompound, the compounding source and final formulation. Retain cure system and supplied condition; neither trade name nor color identifies the complete compound. |
| Cured Stock or Finished Components | For sheet, molded and bonded parts, retain the exact compound, cure and post-cure state, lot, drawing and finished-part evidence. A supplier raw-product table is not a finished seal certificate. |
Agree Your Finished Fit
Review the actual assembly and measuring state.
| Your decision | What to confirm |
|---|---|
| Seal interfaces | Groove, squeeze, motion and mating surface |
| Exposure | Media, temperature, time and load |
| Measurement | Support, critical dimensions and agreed method |
Retain Product and Part Records
Material documents and finished-part approval serve different purposes.
| Your decision | What to confirm |
|---|---|
| Identity | Manufacturer product, color, batch and supplied condition |
| Drawing | Critical dimensions, sealing edges and appearance |
| Function | Approved sample and specified tests |
Keep Polymer Fluorine Content Separate From Seal Approval
Viton product references · Supplier-listed polymer fluorine content, % · Named Viton product-table reference
Polymer Fluorine Content (%)
Nominal polymer references, not a chemical-resistance ranking, finished compound specification or service guarantee. Confirm the full product, formulation, cure and actual chemical exposure before approval.
Supplier B/F-type table → Supplier A-type table →2 Purchasing Forms. Different Evidence.
Gum or Precompound Into a Controlled Formulation
Specify the full FKM rubber material, whether it is a gum or curative-containing precompound, the compounding source and final formulation. Retain cure system and supplied condition; neither trade name nor color identifies the complete compound.
Cured Stock or Finished Components
For sheet, molded and bonded parts, retain the exact compound, cure and post-cure state, lot, drawing and finished-part evidence. A supplier raw-product table is not a finished seal certificate.
Resolve 6 FKM Material Risks
Actual chemical & exposure for Your Finished Part
For FKM chemical resistance, identify the complete chemical or mixture, concentration, additives, temperature, duration, pressure and movement. Does FKM fluorine content alone predict chemical resistance? No; approve the exact compound with representative exposure evidence.
Cure & post-curing for Your Finished Part
Retain the full gum or precompound, formulation, current processing instructions and required delivered cure condition. Post-curing depends on the actual compound and acceptance evidence; do not apply one universal time or temperature.
Hardness & compression for Your Finished Part
FKM Shore hardness and FKM compression set require their own method and conditions. Retain scale, specimen, cure and conditioning for hardness, plus deflection, temperature, duration and recovery for compression set.
Trade name & full product for Your Finished Part
Is Viton the same as every FKM compound? No. Retain manufacturer product, full formulation, cure system, color and traceability. A trade name or generic FKM description does not establish complete compound identity.
Alternatives & legacy grades for Your Finished Part
For FKM vs FFKM, compare full material, exposure and finished-part evidence rather than approving a substitution by abbreviation. Historical Dyneon grade requests need current supply, identity and traceability confirmation; do not assume ongoing availability or automatic equivalence.
Final fit & approval records for Your Finished Part
For FKM material certification, agree exact compound, producer, cure and post-cure state, lot, drawing and approved sample. Alternative approval needs recorded material comparison, dimensions and specified functional or exposure tests.
Match the Route to Your FKM Compound
Rubber Molding Review
For FKM compression molding or another qualified rubber route, agree full compound, tooling, cure, post-cure and sample approval.
Review requirements ↓
Rubber-to-Metal Review
Agree elastomer, metal, preparation, interface, cure and representative bond acceptance.
Review requirements ↓
Cured Sheet Gaskets
Agree full cured stock identity, thickness, cut edge, holes and dimensions.
Review requirements ↓Manufacturing availability and compound suitability require project confirmation for your drawing.
Agree 3 Checks for Your Receiving Team
| Your check | Evidence to agree |
|---|---|
| 1 | Producer, exact compound, gum or precompound origin, cure/post-cure state and lot. |
| 2 | Controlled drawing, sealing surfaces, critical dimensions and agreed measurement state. |
| 3 | Approved sample, agreed FKM material certification and specified exposure, compression, bond or assembly tests. |
6 Inputs for Your FKM Quote
- 01CAD + controlled drawing
- 02Full compound + cure/post-cure + supplied form
- 03Quantities + tooling + manufacturing route
- 04Media + temperature + movement
- 05Critical fit + sealing edge + appearance
- 06Material records + functional tests + delivery
Material · Tooling · Cure and finishing · Quantity · Inspection · Delivery
Answers Before You Specify
What should a custom FKM seal quote specify?
Send CAD and controlled drawing, complete compound and cure state, quantities, process scope, chemical or mixture, concentration, temperature, pressure, movement and required records. An FKM molding quote should cover the same finished material, post-curing and inspection scope.
Is Viton the same as every FKM compound?
No. Retain the exact manufacturer product, complete formulation, cure system, lot and supplied condition. Trade name and generic polymer family are different levels of identification.
Can FKM replace FFKM in an existing seal?
Do not approve the change without review of full material, chemical exposure, temperature, pressure, geometry and representative finished-part tests. Retain documented change approval.
Can a historical Dyneon grade be specified for a new part?
Resolve current manufacturer or traceable supply, exact historical designation, material condition and supporting records before quoting. Evaluate available alternatives with full compound and finished-part approval; a legacy datasheet alone does not confirm supply.
Does FKM fluorine content alone predict chemical resistance?
No. Full polymer type, formulation, cure and actual exposure matter. Keep nominal polymer fluorine content separate from compound compatibility and finished seal acceptance.
What records approve an alternative FKM compound?
Agree full original and proposed products, formulation and cure evidence, material comparison, drawing, sample, dimensions and specified chemical, compression, bond or functional tests. Record the approved scope and traceability.
Retain Your Full Compound and Supplied Condition
| Reference | What it does and does not identify |
|---|---|
| FKM | A fluoroelastomer family direction; retain exact polymer, formulation and cure. |
| Viton / DAI-EL + full grade | Manufacturer product names and full suffixes; not a substitute for the final compound specification. |
| Gum / precompound / cured part | Different supplied states with different formulation, processing and acceptance evidence. |
| FFKM or historical grade alternative | Requires complete identity, current supply evidence and documented material plus finished-part approval. |
Generic polymer designations do not approve a manufacturer-grade substitution. Retain the complete product, suffix and application evidence rather than inventing an EN/DIN equivalent.
Product references: Chemours Viton and Daikin DAI-EL product information. Generated concepts illustrate geometry, not actual customer parts or material-grade identification.
