PVC and EPDM Silicone

Protect a prepared PVC or EPDM membrane with a continuous KoolFlex silicone finish. PVC and EPDM Silicone combines substrate-specific priming with a weather-resistant coating for roofs exposed to sunlight and standing water.

Consider this approach when water retention and long exposure drive the coating choice. Adhesion and membrane condition determine suitability; confirm both before applying a roof-wide finish.

Record scope

This page is the product-level record for PVC and EPDM Silicone. It separates this product from similar lines, variants and generations so that specifications and data sheets can be checked against the correct identity.

• Product family: PVC and EPDM
• Recorded applications: PVC and EPDM roof restoration, Silicone coating system
• Market: USA
• Manufacturer: Kool Coats

Key recorded details

These values summarize reviewed manufacturer information. Use the linked source for tolerances, options, exclusions and complete assembly requirements.

• Existing roof: PVC and EPDM
• Coating chemistry: Silicone
• Finish / main coating: KoolFlex Premium Silicone

Matched current documents

The following current files are connected directly to this product record. Older revisions remain in the archive when moderators retire them.

• KF-600 KoolFlex Premium Silicone — Technical Data Sheet
• P-301 Multipurpose Primer — Technical Data Sheet
• KF-460 KoolFlex Mastic — Technical Data Sheet
• P-313 EPDM Bleed-Block Primer — Technical Data Sheet
• RP-105 Rinseable EPDM Cleaner — Technical Data Sheet

Design and specification coordination

Use these checks to connect the product record to a complete, project-specific assembly. The manufacturer documents and approved construction documents govern where they provide more specific requirements.

• Confirm membrane type, nominal thickness, reinforcement or fleece construction, color and roll dimensions.
• Coordinate the roof deck, vapor control, insulation, cover board and attachment method as one tested roof assembly.
• Verify adhesive or fastener compatibility, seam-welding requirements, perimeter enhancement and details at penetrations and edges.
• Check wind-uplift, fire and code listings for the complete assembly rather than relying on membrane properties alone.
• For recover work, document the existing roof, moisture survey, substrate preparation and separation-layer requirements.

Submittal and field verification

A useful product record should allow a reviewer to trace what was specified, approved, delivered and installed. Include the following items when this product is proposed or verified.

• Use the exact product name and manufacturer identifier on the submittal; do not substitute a similar family name.
• Attach the current product data sheet and the applicable installation, safety, approval and warranty documents.
• Record selected options such as size, thickness, profile, color, finish, reinforcement and attachment method.
• Identify the tested or approved assembly and list each adjoining component needed to reproduce it.
• At delivery, compare labels and revision dates with the approved record and archive superseded files instead of overwriting them.

Selection, installation and existing-roof checks

Confirm the exact product name, generation and configuration before using any value on this page. Check the roof substrate, slope, attachment or adhesive, reinforcement, edge and penetration details, accessories, tested assembly and local approval that apply to the project. For an existing roof, compare labels, package records, original submittals and physical dimensions; appearance alone is not enough to identify a product.

Recorded applications

• PVC and EPDM roof restoration
• Silicone coating system

Record scope

• Product family: PVC and EPDM
• Recorded market: USA
• Product code: Silicone coating system

Related services and guidance

• Flat Roofing Systems Texas

• Existing roof: PVC and EPDM (USA)
• Coating chemistry: Silicone (USA)
• Finish / main coating: KoolFlex Premium Silicone (USA)

Your roof substrate

PVC is a thermoplastic sheet membrane, usually joined by heat welding. EPDM is a synthetic rubber sheet, commonly joined with adhesive or seam tape. Identify which membrane you have before selecting preparation products: a cleaner or primer suitable for PVC may not be suitable for EPDM.

Market: USA

Verify this information with the manufacturer source

Where to use this system

Consider this approach when water retention and long exposure drive the coating choice. Adhesion and membrane condition determine suitability; confirm both before applying a roof-wide finish.

Market: USA

Verify this information with the manufacturer source

Preparation and adhesion

Clean the membrane and repair seams, flashings and penetrations. Use RP-105 to prepare aged EPDM where specified, then rinse it off as directed. P-313 is an EPDM bleed-block primer for acrylic or silicone coatings. P-301 can be used on PVC but must not be used on EPDM. Complete adhesion tests for the exact membrane, primer and coating combination.

Market: USA

Verify this information with the manufacturer source

How the coating layers work

Prepare PVC and EPDM with their respective cleaner and primer schedules. Complete compatible repairs and apply KoolFlex Premium Silicone to the required build. On EPDM, include the specified bleed-block treatment to reduce discoloration through the finish.

Market: USA

Verify this information with the manufacturer source

Coating thickness

Specify the minimum cured silicone thickness for your chosen assembly and allow separately for primer and detail treatment. The KF-600 sheet has conflicting coverage and wet-film figures. Its 20-mil NSF entry is not a roof-warranty thickness schedule; use the corrected roof-system application schedule.

Market: USA

Verify this information with the manufacturer source

Guarantee options

KF-600 KoolFlex Premium Silicone offers full-system limited warranty options from 5 to 20 years. Select the written option for your roof, then confirm the required coating build, preparation, inspections and maintenance. A component sheet alone does not establish your project’s coverage.

Market: USA

Verify this information with the manufacturer source

Care and recoating

Inspect the roof at least twice a year and after severe weather or work on rooftop equipment. Keep drains clear, check flashings and penetrations, and repair damage with compatible materials. Confirm the surface preparation and compatibility requirements before any future recoat.

Market: USA

Verify this information with the manufacturer source

PVC is a thermoplastic sheet membrane, usually joined by heat welding. EPDM is a synthetic rubber sheet, commonly joined with adhesive or seam tape. Identify which membrane you have before selecting preparation products: a cleaner or primer suitable for PVC may not be suitable for EPDM.

Compatibility considerations

Clean the membrane and repair seams, flashings and penetrations. Use RP-105 to prepare aged EPDM where specified, then rinse it off as directed. P-313 is an EPDM bleed-block primer for acrylic or silicone coatings. P-301 can be used on PVC but must not be used on EPDM. Complete adhesion tests for the exact membrane, primer and coating combination.

• PVC and EPDM Silicone coating system
• KF-600 KoolFlex Premium Silicone — Technical Data Sheet
• KF-460 KoolFlex Mastic — Technical Data Sheet
• P-301 Multipurpose Primer — Technical Data Sheet
• P-313 EPDM Bleed-Block Primer — Technical Data Sheet
• RP-105 Rinseable EPDM Cleaner — Technical Data Sheet