EPDM · Compression Seal
Dseal SealMaster-H
SealMaster-H is Dseal's horizontal EPDM compression seal that locks watertight into floor and wall joints, flexing with structural movement while shrugging off weather, UV and ozone for decades.
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SealMaster-H is a horizontal EPDM compression seal engineered for floor-to-floor and wall expansion joints in concrete and masonry structures. Manufactured from solid EPDM rubber profile that is compressed and locked into the prepared joint cavity, it is widely specified across commercial buildings, parking decks, industrial floors and podium slabs where a flush, durable seal is essential.
Once installed under compression, SealMaster-H delivers a continuous watertight barrier that accommodates thermal expansion and contraction without splitting or pulling away. The EPDM compound resists weathering, ultraviolet exposure and ozone attack, retaining its elasticity and sealing pressure through India's wide temperature swings and heavy monsoon loads.
Key Benefits
- Forms a reliably watertight floor and wall joint that keeps water and dust out
- Flexes continuously with building movement so the seal never cracks or lifts
- EPDM compound resists sun, heat, ozone and monsoon rain for a long service life
- Sits flush with the finished floor for a clean, trip-free walking surface
- Quick dry-fit compression install means no messy curing or long downtime
- Made in India by Dhawan Associates with ISO-certified quality assurance
Applications
- Commercial and office building floor expansion joints
- Industrial and warehouse concrete floors subject to movement
- Multi-storey car park and podium deck slabs
- Wall-to-floor junctions in basements and plant rooms
- Shopping malls, airports and public concourse floors
- Plaza decks and walkway transitions over structural joints
Features & Construction
- Solid EPDM rubber profile held permanently under compression in the joint
- Horizontal orientation optimised for floor and low-level wall movement joints
- Watertight sealing face that bridges the gap across the full joint length
- Weather, UV and ozone resistant elastomeric compound retains elasticity
- Continuous extruded lengths for unbroken sealing with minimal joins
- Compatible with concrete, masonry and screeded floor substrates
Technical Specifications
| Type | Horizontal EPDM compression seal |
|---|---|
| Material | EPDM rubber |
| Application | Floor / wall joints |
Installation Guide
- Clean the joint, removing debris, laitance and loose material from both faces
- Measure the joint gap and confirm the correct SealMaster-H profile size
- Prime or prepare the joint arrises as recommended for the substrate
- Apply adhesive lubricant to the seal and joint contact faces
- Compress and insert the EPDM profile into the joint along its length
- Seat the seal flush, ensuring uniform compression with no gaps or twists
- Wipe off surplus adhesive and inspect the finished joint for continuity
Maintenance & Care
SealMaster-H needs very little upkeep. Periodically clear grit, debris and standing dirt from the joint surface and rinse with water so the seal stays clean and continues to sit flush. Inspect the joint once or twice a year, paying attention to high-traffic and water-prone areas.
During inspection look for any sections where the EPDM has lifted, shifted or lost compression, and check that the sealing face remains unbroken. The EPDM compound does not require painting or sealing; if a length is ever damaged it can be cut out and re-fitted. Contact Dhawan Associates for matching replacement profiles.
FAQs
SealMaster-H — Frequently Asked Questions
What is SealMaster-H?
SealMaster-H is a horizontal EPDM compression seal from Dseal designed to waterproof and bridge floor and wall expansion joints. The flexible rubber profile is compressed into the joint to form a continuous, watertight, movement-accommodating barrier.
What material is SealMaster-H made from?
It is made from solid EPDM rubber, an elastomer prized for its resistance to weather, UV, ozone and water. Dseal manufactures the profile in India to maintain consistent quality and elasticity.
Which expansion joint type does SealMaster-H suit?
It is built for horizontal movement joints, primarily floor-to-floor and wall expansion joints in concrete and masonry construction where a flush, durable seal is required.
Is SealMaster-H waterproof?
Yes. When correctly compressed into the joint, SealMaster-H forms a watertight seal that prevents water ingress through floor and wall joints, which makes it suitable for decks and wet areas.
How much movement can SealMaster-H accommodate?
As a compression seal it flexes as the joint opens and closes with thermal and structural movement. The exact movement range depends on the profile size chosen for your joint gap, which Dseal can advise on.
Is SealMaster-H weather and UV resistant?
Yes. The EPDM compound resists ultraviolet light, ozone and weathering, so the seal retains its elasticity and sealing pressure through India's hot summers and heavy monsoons.
How is SealMaster-H installed?
The joint is cleaned and prepared, lubricant adhesive is applied, and the EPDM profile is compressed and inserted along the joint to sit flush with the floor. It is a dry-fit compression install with no long curing time.
Does SealMaster-H need maintenance?
Very little. Keep the joint clear of grit and debris and inspect it once or twice a year. The EPDM needs no painting or sealing, and damaged lengths can simply be cut out and replaced.
What standards and certifications back SealMaster-H?
It is made by Dhawan Associates, a manufacturer certified to ISO 9001:2015 for quality, ISO 14001:2015 for environment and ISO 45001:2018 for occupational health and safety.
How is SealMaster-H different from SealMaster-HV?
SealMaster-H is focused on horizontal floor and wall joints, while SealMaster-HV is rated for both horizontal and vertical joints and gaps up to 120 mm with broader chemical and oil resistance.
Can SealMaster-H be made in custom sizes?
Yes. Dseal manufactures profiles to suit different joint widths and can advise on the right size for your project. Contact Dhawan Associates to discuss custom requirements.
Can SealMaster-H be used outdoors?
Yes. Its weather, UV and ozone resistance makes it well suited to exposed external floors, decks and plazas as well as protected internal joints.
Who manufactures SealMaster-H?
SealMaster-H is manufactured in India by Dhawan Associates under the Dseal brand, a leading maker of expansion joint systems and covers.
Where can I buy SealMaster-H in India?
You can buy SealMaster-H directly from Dseal (Dhawan Associates). Call +91 93109 97953 to discuss your project, get sizing advice and place an order.
Does SealMaster-H sit flush with the floor?
Yes. It is designed to seat flush with the finished floor level, leaving a clean, trip-free surface that suits walkways and trafficked areas.
What substrates does SealMaster-H work with?
It suits concrete, masonry and screeded floor joints. Dseal can advise on the right preparation and priming for your specific substrate.
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