Gasketing Compound
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Order Code: T978
8518-50 - Gasketing Compound
Flexible Solvent Resistant High Viscosity
Gasketing Compound
Flexible Solvent Resistant
High Viscosity
Cure Time
Handling Cure Time:
Unprimed: 4 - 24 hours
Primed: 30mins - 4hours
Viscosity (cps)
800,000 / 3,750,000
Gap Fill
Unprimed: 0.254 mm
Primed: 1.27 mm
Temperature Range
-55ºC to 150ºC
Flexible Solvent Resistance High Viscosity
Gasket Sealant

8518 is an anaerobic gasket sealant, which develops medium strength in a short time. The compound cures in the absence of air between close fitting metal surfaces.

8518 is a flexible gasketing sealant, which will flex with minor flange movements. Provides resistance to low pressure immediately after assembly of flanges

- Typically used as a form-in-place on rigid flanged connections, e.g. gearbox and engine castings, etc.
- Thixotropic nature reduces the migration of liquid product after application.

Colour: Red
Cure State: Flexible
Temperature Range: -55 to 150°
Gap Fill: Unprimed: 0.254 mm, Primed: 1.27 mm
Viscosity cps: 800,000/3,750,000 Thixotropic
Cure: Unprimed: 1-2 hours, Primed: 15 mins - 2 hours

Adhesive Properties:
Composition: Dimethacrylate ester
Color: Red
Viscosity: 800,000 – 3,750,000 cps at 25°C
Brookfield RVT Spindle 7 @ 20 rpm
Specific Gravity: 1.13
Maximum Diameter of Thread/Gap Fill >0.50mm
Flash Point: 93°C
Solvent Content: None

Curing Properties:
Handling Cure Time:
Unprimed Surfaces 4 - 24 hours
Primed Surfaces 30 mins to 4 hours.
Compressive Shear Strength:
(ISO 10123)
After 24 hrs at 22°C
Steel Pins & Collars >5 N/mm2 >725 psi
Lap Shear Strength, ISO 4587
Steel (grit blasted) 7.5 N/mm2 1,100 psi
Lap Shear Strength, ISO 6922
Steel (grit blasted) 8.5 N/mm2 1,200 psi
Temperature Range -55 to 150°C

Physical Properties:
Coefficient of Thermal Expansion: 80×10-6
ASTM D 696, K-1
Coefficient of Thermal Conductivity: 0.10
ASTM C 177, W/ (m·K)
Specific Heat, kJ/ (kg·K) 0.30
Product Brochure
297_8518 Flexible Solvent Resistance Gasket Sealant MSDS
58.46 KB
297_8518 Flexible Solvent Resistance Gasket Sealant TDS
92.07 KB
Spare Parts Ordering
To assist you in ordering your spare part quicker than ever before, we have listed our most common spare parts to suit our Hafco Machinery for purchase online. Just choose between the 2 options outlined below, to find exactly what you are looking for. If you need further assistance please contact us.
Option 1
Browse through the "Common Spare Parts" tab below . Once you have identified your part, you can add it to your cart by clicking on the "+ ADD TO CART" button. If you wish to add multiples of this part you can either click the "+ ADD TO CART" button as many times as you like or click on the "VIEW CART" button and change the order quantity, prior to completing your order.
Option 2
If your part is NOT listed in the "Common Spare Parts" tab below , click the "MORE INFO" button to complete the "Spare Parts Enquiry Form".
This will provide you with the option to email your spare part enquiry direct to our Spare Parts and Service Department, or if you wish, you can download a printable version of this enquiry form which will include a copy of the Parts List to suit this machine (if available). Further instructions for the return email address or fax number of this printable form is provided on the document for your convenience.
NOTE: Please remember to clearly identify your part on the included parts diagram if necessary so that we can respond as quickly as possible with a price and availability for the part(s) you require.