Square foam penetration seal with concentric cut rings for waterproofing pipe penetrations and service outlets.

Gripset Elastoproof Collar S 120mm x 120mm

$17.55

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Gripset Elastoproof Collar S 120mm x 120mm is a prefabricated waterproofing collar designed to provide a secure, watertight seal around small pipe penetrations and service outlets. Manufactured from a flexible elastomeric membrane, it integrates seamlessly with compatible waterproofing membranes to simplify detailing and improve waterproofing performance.

The collar accommodates movement caused by thermal expansion, vibration and substrate movement while maintaining a durable waterproof seal. It helps eliminate common leak paths around penetrations and reduces installation time compared with traditional site-fabricated detailing.

Suitable for use in internal wet areas, balconies and other waterproofing applications, the Gripset Elastoproof Collar S ensures consistent, reliable detailing around 120mm × 120mm penetration areas when installed as part of a compliant waterproofing system.

Prefabricated flange seal for pipes and penetrations up to 50mm

Enables 100% elastic recovery when exposed to movement

Eliminates the need for caulkable sealants and potential adhesion issues

Collar Size: 250MM X 250MM

120MM X 120MM$10.00250MM X 250MM$17.55350MM X 350MM$36.55

Pack: EACH

EACH$17.5510 PACK$175.50

Quantity: 1

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Pickup available at The Waterproofing Shop

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Gripset Elastoproof Collar S 120mm x 120mm

250MM X 250MM / EACH

The Waterproofing Shop

Pickup available, usually ready in 24 hours

22/872 Canterbury Road
Roselands NSW 2196
Australia

+61280213517

Product Details

ELASTOPROOF COLLARS are factory-manufactured waterproof sealing accessories specifically developed for detailing around service penetrations and critical junctions, including pipes, floor drains, conduits, cables, and fixing points.

Designed to provide a flexible and watertight transition between penetrations and surrounding waterproofing membranes, the collars help eliminate common leakage points within waterproofing systems. Their high-elasticity construction enables them to absorb structural movement, vibration, and minor substrate cracking while maintaining a durable and continuous seal.

By reinforcing vulnerable detailing areas, ELASTOPROOF COLLARS enhance the overall durability, integrity, and long-term performance of waterproofing assemblies in both horizontal and vertical applications.

Key Features

Provides a reliable watertight seal around penetrations and junctions
High elasticity accommodates movement, vibration, and minor cracking
Reinforces critical detailing areas within waterproofing systems
Compatible with liquid-applied waterproofing membranes
Helps prevent water ingress at vulnerable transition points
Durable and flexible construction for long-term performance
Suitable for internal and external waterproofing applications
Easy to install and integrate into membrane systems
Maintains waterproof integrity in horizontal and vertical applications
Resistant to moisture exposure and environmental movement

Recommended Applications

Sealing around pipes, conduits, and cable penetrations
Waterproof detailing for floor drains and fixing points
Wet areas including bathrooms, showers, and laundries
Roofs, balconies, podiums, and terraces
Planter boxes, retaining walls, and landscaped areas
Water tanks, ponds, and water features
Commercial, residential, and industrial waterproofing systems
Reinforcement of membrane transitions and movement-prone areas
Internal and external waterproofing applications exposed to moisture and structural movement

How to Use

Cut the centre hole at 75% of the measured pipe diameter, bed the collar into a wet coat of Gripset membrane, brush out the air pockets, then encapsulate with a second coatInstall the collar over a prepared and primed surface
Measure the diameter of the pipe or penetration to be sealed
Calculate 75% of the measured diameter as the diameter of the hole to be cut in the collar
Fold the collar in half so the marked circles on the collar face are exposed as a semi-circle
Follow the semi-circular lines and cut the measured section of the central rubber area out to form a circular hole
Fit the collar over the pipe or penetration to check it provides a tight fit around the circumference, then remove and adjust as necessary
Apply a liberal coat of Gripset membrane around the circumference of the pipe or penetration, enough to cover 100% of the rear collar profile
Slide the collar over the neck of the pipe or penetration and embed it into the wet membrane bed so the fabric edges are fully wetted into the membrane film
Using a brush, push out all creases and air pockets behind the fabric edges
Check the collar is tightly fitted around the circumference and firmly bonded into position, showing good adhesion to the surface
Apply a second coat of Gripset liquid membrane to fully encapsulate the collar and affix it to the surface

Technical Specifications

Product Type: Prefabricated flange seal for pipes and penetrations
Material: NBR nitrile butadiene rubber, cured
Colour: Grey
Specific Gravity: 1.2
Size: 120mm x 120mm (Small Collar)
Penetration Capacity: Pipes and penetrations up to 50mm
Hole Preparation: Centre hole cut at 75% of the measured pipe diameter
Edge Construction: Fabric edges, wetted into the membrane film
Elastic Recovery: 100% when exposed to movement*
Strength: High strength and excellent tear resistance*
Membrane Compatibility: Compatible with all Gripset membranes, adhesives and coatings
Chemical Incompatibility: Not compatible with solvent based materials, adhesives or sealants
Other Sizes in the Range: Medium 250mm x 250mm for penetrations up to 110mm, Large 300mm x 300mm for penetrations up to 150mm
Solubility in Water: Insoluble
Hazard Classification: Not classified as hazardous according to criteria of Worksafe Australia
Data Sheet Issue Date: 01/10/2024
* Manufacturer stated values - the TDS cites no accredited test report

Product Files

Gripset Elastoproof Collar S 120mm x 120mm250MM X 250MM / EACH

$17.55

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Gripset Elastoproof Collar S 120mm x 120mm $17.55

Technical overview

Gripset Elastoproof Collar S is a prefabricated flange seal used to detail pipes, drainage outlets, cabling and substrate fixtures inside a Gripset waterproofing system. The 120mm x 120mm collar suits pipes and penetrations up to 50mm. The centre hole is cut at 75% of the measured pipe diameter, the collar is bedded into a wet coat of Gripset membrane so the fabric edges are fully wetted in, then a second coat encapsulates it. It is compatible with all Gripset membranes, adhesives and coatings and is not compatible with solvent based materials. The Gripset data sheet cites no Australian Standard and no accredited test report, so system compliance is carried by the membrane the collar is embedded into.

Key applications

Wet areas, showers, laundries
Roofs, decks, balconies, podiums
Planter boxes, garden beds
Ponds, tanks, water features
Pipes and drainage outlets
Cabling and substrate fixtures

Not compatible with solvent based materials, adhesives or sealants. Collars must be bedded into a wet film of the membrane, so do not allow the membrane to skin or dry before bedding the collar in position. Apply sufficient wet membrane behind the collar to ensure the fabric is wetted in and proper adhesion is achieved. Collars are to be installed over a prepared and primed surface. This 120mm x 120mm collar is suitable for pipes and penetrations up to 50mm only; use the 250mm x 250mm collar up to 110mm or the 300mm x 300mm collar up to 150mm.

Technical Specifications

Product Type	Prefabricated flange seal for pipes and penetrations
Material	NBR nitrile butadiene rubber, cured
Colour	Grey
Specific Gravity	1.2
Size	120mm x 120mm (Small Collar)
Penetration Capacity	Pipes and penetrations up to 50mm
Hole Preparation	Centre hole cut at 75% of the measured pipe diameter
Edge Construction	Fabric edges, wetted into the membrane film
Elastic Recovery	100% when exposed to movement*
Strength	High strength and excellent tear resistance*
Membrane Compatibility	Compatible with all Gripset membranes, adhesives and coatings
Chemical Incompatibility	Not compatible with solvent based materials, adhesives or sealants
Other Sizes in the Range	Medium 250mm x 250mm for penetrations up to 110mm, Large 300mm x 300mm for penetrations up to 150mm
Solubility in Water	Insoluble
Hazard Classification	Not classified as hazardous according to criteria of Worksafe Australia
Data Sheet Issue Date	01/10/2024
* Manufacturer stated values - the TDS cites no accredited test report

Why trade professionals choose Gripset

Gripset supplies waterproofing membranes, primers, tapes, bond breakers and detailing components to the Australian trade, and the range is used widely on residential and commercial projects. It is built around complete systems, so the primer, the membrane and the detailing accessories are designed to work together on bathrooms, balconies, planter boxes and below-ground areas. We stock Gripset for tilers, waterproofers and builders who would rather buy the whole build-up from one place than mix components across brands.

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