Silicone Gasket Maker
Silicone gasket makers form a gasket in place on flanges and housings, replacing or supplementing pre-cut gaskets. The manufacturer's RTV gasket maker range includes gray, copper and flex variants described below in the manufacturer's own words.
Confirm the flange material, gap, oil exposure and temperature range of your joint before ordering.
Products in this range
The products below are described in the manufacturer's own words. Specifications beyond what is quoted here are not stated on this site; confirm any technical requirement for your application before ordering.
JSG105 HI-TEMP GRAY RTV GASKET MAKER

Manufacturer description: JSG105 is a high temp,oil resistant,antifreeze resistant,RTV silicone up to 650℉(343℃).
Listed details: Typical Colors Gray
Features listed by the manufacturer:
- Features Effective up to 650°F (343°C)
- Professional use
- High grade
- Neutral cure
- Odorless
- Sensor safe
Applications listed by the manufacturer: Transmission pans Valve covers Oil pans Water pumps Gearboxes Intake manifold end seals Stamped sheet metal covers Compressors Gearboxes Thermostat housings Exhaust manifolds Pump housings Machine tools
Confirm colour, pack size and availability for this exact code before ordering.
JSG108 PREMUIM RTV GASKET MAKER COPPER
Manufacturer description: JSG108 is a high temp, oil resistant, antifreeze resistant, RTV silicone up to 700℉(371℃).
Listed details: Typical Colors Copper
Features listed by the manufacturer:
- Features Effective up to 700°F (371°C)
- Resistant to ATF/oil/coolant
- Instant blow-out resistance
- Great for exhaust manifolds
- Neutral cure
- Odorless sansor safe
Applications listed by the manufacturer: Be specially used in manufacture & repair of auto & machinery Replaces most cut gaskets Verstile usage Typical applications include oil pans transmission pans valve covers valves and guides timing gear covers and differential covers
Confirm colour, pack size and availability for this exact code before ordering.
JSG189 PREMUIM RTV GASKET MAKER GRAY
Manufacturer description: JSG112 is a gear oil resistant,oil resistant, antifreeze resistant, high temp RTV silicone.
Listed details: Typical Colors Gray
Features listed by the manufacturer:
- Features Withstand operating environments 210°C continuous
- Resistant to gear oil engine oil and antifreeze
Applications listed by the manufacturer: It is applicable to the assembly and repair of industrial furnaces ovens boilers exhaust pipes high-temperature pipes and electrical heating elements It is also used for automobile/motorcycle engines valves and such joint covers of rigid flanges
Confirm colour, pack size and availability for this exact code before ordering.
Related products in the same family
Other products in this family, described in the manufacturer's own words:
JL621 KITCHEN & BATH NEUTRAL SILICONE SEALANT
Manufacturer description: JL621 is neutral silicone, high performance for kitchen and bath.
Listed details: Typical Colors White
Features listed by the manufacturer:
- Features Excellent waterproof
- Mildewproof
- Flexible
- Low odor
Applications listed by the manufacturer: Kitchen & bath room flower house and balcony
Confirm colour, pack size and availability for this exact code before ordering.
JL800 PREMIUM WEATHERPROOF SILICONE SEALANT
Manufacturer description: JL800 is a premium grade,weathering, high modulus +/- 25% movement, neutral cure silicone sealant for construction.
Listed details: Typical Colors White, Clear, Black, Gray, Brown, etc
Features listed by the manufacturer:
- Features Low Odor
- Improved oil resistance
- High movement ability 25HM
Applications listed by the manufacturer: Glazing and weather sealing Jointment in curtain wall Aluminum composite panel Building facades
Confirm colour, pack size and availability for this exact code before ordering.
JL180 NON-STAINING STONE SILICONE SEALANT
Manufacturer description: JL180 is a high modulus +/- 25% movement, non-staining, neutral cure silicone sealant for stone sealing.
Listed details: Typical Colors Black, White, Gray
Features listed by the manufacturer:
- Features UV resistance
- Unprimed adhesion to masonry & concrete
- None corrosive to substrates
Applications listed by the manufacturer: Marble natural stone granite and masonry
Confirm colour, pack size and availability for this exact code before ordering.
JL719 ROOF & GUTTER WEATHERING SILICONE SEALANT
Manufacturer description: JL719 is a weathering, high strength, neutral cure silicone sealant/adhesives for roof and gutter.
Listed details: Typical Colors Black, White, Gray
Features listed by the manufacturer:
- Features UV resistance
- Waterproof
- Low odor
- Weatherproof
Applications listed by the manufacturer: PVC & Metal roofs most gutters and cement sheeting
Confirm colour, pack size and availability for this exact code before ordering.
Questions to confirm for your order
- Confirm the exact product code, colour and pack size for your order.
- Confirm the minimum order quantity and lead time for your quantity.
- Confirm which documents you need with the shipment. Certificates available upon request.
- Confirm suitability for your substrate and application in writing before ordering.
Frequently asked questions
Which product code should I choose?
For silicone gasket maker, the code matters more than the generic type: colour, pack size and published description differ by code. Compare the quoted descriptions on this page, then confirm your shortlist by inquiry.
What colours and pack sizes are available?
Colours and pack sizes are stated per product code in the manufacturer's listings where published. Where they are not stated, ask for them in your inquiry before ordering.
Can I get a sample before a bulk order?
Ask about samples in your inquiry, together with the product code, colour and quantity you need. Samples let you check colour, adhesion and handling on your own substrates before committing to volume.
Related pages
Confirm before you order
Before ordering, ask about the following for the exact product you need: product code and colour, pack size, minimum order quantity, lead time, and the documents you need with the shipment. Certificates available upon request. Email [email protected] to ask whether your requested products and documents are available.