Intumescent Fire Door Strips 

RESSA intumescent fire door strips expand in the event of a fire, sealing off frames and fire doors, preventing fire and smoke to safeguard lives and property, ideal for all kinds of fire doors like wooden fire doors, metal fire doors and composite fire doors.

According to the different designed doors, we provide flexible intumescent fire doors strips and rigid hard PVC casing intumescent fire door strips, the thickness covers 0.6mm to 10mm and the width includes 10mm, 15mm, 20mm, 25mm …, the length includes 1050mm, 2100mm and all customized.

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Fire Seal

Passive fire protection

RPB Series Flexible Intumescent Strip is an fireproof intumescent tape designed to seal the air spaces between doors, frames and glass to help prevent the spread of fire, smoke, toxic gases and other byproducts from penetrating into adjacent areas. Intumescent material expands and forms a hard char when exposed to heat. This flexible, conformable strip can be quickly cut to required sizes.

Effective Fire Resistance in a Convenient Tape Strip

During a fire, it’s vital that doors, frames and fire-resistant glass are properly sealed to help prevent the spread of flames, smoke and noxious gasses. RPB Series Flexible Intumescent Strip is an excellent solution, it is conformable, flexible and easy to apply. This convenient rolled strip can be easily cut to fit a range of applications without special tools, saving time and money. The re-enterable adherent surface supports material that is designed to expand when exposed to intense heat — effectively sealing the gaps in door frames and glazing applications. This material forms a hard char that continues to resist fire and forms a smoke seal, helping eliminate the spread of smoke and other toxic byproducts during and after a fire.

Details

Highlights

Fire resistance in a tape strip format, ideal for door frames and glazing

Intumescent material expands when heated to seal around objects exposed to fire

Smoke seal retards spread of toxic byproducts of combustion

Excellent flexibility for easy and cost-effective installation without special tools

Versatile and conformable – can be cut to fit irregular shapes

Product Categories 

Fire

Smoke

Acoustic

Types of Intumescent Seals for Gun Safes

RYZW Intumesent Seals

Hydrated sodium silicate based fire seals with hard case outside. The activation temperature is around 100℃, it will expand 5 times to a rigid foam than original thickness, provide an effective barrier preventing the smoke and fire spreading inside of safes.

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RPB Intumescent Seals

Suitable for use around the perimeter of gun safe door and frame, it expands 7 to 30times to seal the air space when fire happens, prevent the smoke and fire leakage to guarantee the safes of guns, luxury jewelries, cash and documents inside of gun safes.

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RYZ Rigid Fire Door Strips

Expandable graphite based intumescent materials, outside covered by PVC casing, expand 10-30times volumn than orignal sizes to seal air space when fire happens.

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REPDM-J Waterproof Seals

RESSA D-shaped profile waterproof EPDM rubber seals are made from a custom-formulated EPDM sponge rubber compound, with 3M self adhesive, they provide excellent resistance to water absorption and protect your gun safes from the moisture and water.

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RPBJQC Intumescent Seals 

Consisting of a high performance of intumescent fire protection compound, with a protective extruded soft plastic casing with three fins, but designed to soften and melt in the same temperature range as the core begins to expand.

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RSR Series Silicone Smoke Seal

RSR is an adhesive-backed silicone gasket seal, it demonstrates extremely low closing force with excellent compression and the door latches easily.

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RSR/RPB series Fire Door Strips

RSR/RPB can be used on gun safes and fireproof safes where require both fire and smoke protection it helps to slow the passage of smoke weather dust fire and heat.

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Types of Intumescent Fire Door Strips for Wooden Fire Doors and Metal Fire Doors

RPB Flexible Fire Door Strips

The flexible nature of the strips material permits it to be used for many applications where a rigid strip would be impractical such as tight corners, pipes or tubes.

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RYZ Rigid Fire Door Strips

Expandable graphite based intumescent materials, outside covered by PVC casing, expand 10-30times volumn than orignal sizes to seal air space when fire happens.

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RPB-YXSD Series Fire Door Strips

The seal can be installed along the edge of the rail or sealing area of steel and inorganic fabric fire shutters.

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RPB-YX Series Fire Door Strips

RPB-YX series special shape fireproof intumescent seal combines double functions of impact-resistant and fireproof sealing together, suitable for armored doors.
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RPB-YXGT Series Fire Door Strips

Seals for high-speed trains not only reduce noise, but also react quickly to provide fire protection in the event of a fire.

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RYZW Series Fire Door Strips

RYZW series rigid fireproof intumescent seal is a kind of adhesive-backed seal with sodium silicate intumescent core inside and hard PVC casing outside.

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RRYSJJ Series Fire Door Strips

RRYSJJ series acoustic and smoke corner seal provides the acoustic smoke and heat (cold&hot) sealing for the gaps of door edges and frames.

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RRY Series Fire Door Strips

RRY series fire door strips acoustic and smoke seals demonstrate effective acoustic and smoke perimeter sealing for use in new or retrofit door applications.

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RPB-CR series Fire Door Strips

RPB-CR series seal is RPB series flexible fireproof intumescent seal compound with CR rubber seal, it has excellent fireproof smoke proof and acoustic sealing performance.

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RPB-HW series Fire Door Strips

Available to be customized according to specific lock body and hinges dimension, strong self-adhesive and accurate folding lines help easy installation.

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RY-EPDM series Fire Door Strips

Adopts high-temperature shaping microwave vulcanization process, with good tensile and compression deformation resistance.

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RRY03 Series Dual Cold Smoke Seals

RRY series acoustic and smoke seals demonstrate effective acoustic and smoke perimeter sealing for use in new or retrofit door applications.

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RYZP Rigid Fire Door Strips

The graphite expansion strips on the inner layer and the soft PVC rubber on the outer shell make RYZP fireproof and soundproof at the same time.

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Types of Intumescent Fire Door Strips for Wooden Fire Doors and Metal Fire Doors

RESSA Intumescsent strips for fire doors

RPB Flexible Fire Door Strips

The flexible nature of the strips material permits it to be used for many applications where a rigid strip would be impractical such as tight corners, pipes or tubes.

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RYZD Rigid Fire Door Strips

Sodium silicate based intumescent raw material, the rigid intumescent body when exposed to heat provides tightly and high pressure sealing between doors and frames

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RYZ Rigid Fire Door Strips

Expandable graphite based intumescent materials, outside covered by PVC casing, expand 10-30times volumn than orignal sizes to seal air space when fire happens.

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RYX Series Fire Door Strips

Different special shapes of intumescent fire door strips meet the specific customized different metal door frame profile shapes and wooden door frames.

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RPB Flexible Fire Door Strips

The flexible nature of the strips material permits it to be used for many applications where a rigid strip would be impractical such as tight corners, pipes or tubes.

Get a free quote

RYZD Rigid Fire Door Strips

Sodium silicate based intumescent raw material, the rigid intumescent body when exposed to heat provides tightly and high pressure sealing between doors and frames

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RYZ Rigid Fire Door Strips

Expandable graphite based intumescent materials, outside covered by PVC casing, expand 10-30times volumn than orignal sizes to seal air space when fire happens.

Get a free quote

RYX Series Fire Door Strips

Different special shapes of intumescent fire door strips meet the specific customized different metal door frame profile shapes and wooden door frames.

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RPB-YXGD Series for Fire Glass Frame

The intumescent systems have been specially formulated to accommodate the expansion in the glass during a fire situation.
In the event of a fire, it will expand multi-directionally in volume to effectively seal and insulate the glass into the aperture, providing a fire-resistant sealing.
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RY-EPDM Series Weather Sealing Strip

RY-EPDM weather sealing strip features seamless corner joints for better sealing, combining dense and foam technologies for excellent insulation. Aging-resistant and adaptable to various environments, it offers a service life of over 25 years and works in temperatures from -40°C to 150°C.

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RHC Series Ceramic Sealing Tape

Ceramic Sealing Tape is made of high temperature resistant ceramic fibers with excellent thermal and physical stability at temperatures up to 1260 degrees Celsius, making it ideally suited for use as a bedding material for fire-resistant glazing systems and fire doors in commercial buildings.

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RBFW Series PU Foamed Acoustic Seal

Wrap-around PU soundproof sealing series offers superior airtightness and sound insulation (Class V) with fire certification. It resists temperatures from -60°C to +70°C, shows no sticking or fading, and excels in fatigue resistance and airtightness.

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Get Your Custom Intumescent Fire Door Strips

RESSA is a trusted supplier of full range of intumescent fire door strips, with years of experience in creating high-quality fire protection solutions. It specializes in manufacturing high-quality custom fire door seals and gaskets to cover various need of customers. Here are your custom selections:

Color

A wide range of customizable colors options of our intumescent fire door strips are available for fire door strips, black red grey brown cream and customized colors. This allows the sealings with your doors and frames design, ensuring a cohesive and professional appearance.

Size

We offer a wide range of sizes to meet customers’ needs. Whether you need flexible fire door strips, rigid fire door strips or any special sizes of fire door strips, we will cooperate to design. We provide the length cutting service for accurate length requirement within  (+1mm, -1mm) tolerance.

Material

Customization of different intumescent materials are available your spefic designed fire doors, including graphite intumescent materials and sodium silicate intumesent materials. Helping to enhance the fire protection for your fire doors and meet different test standards.

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Features that Make Our Intumescent Fire Door Strips Unique

expanding RESSA RPB Series Intumesent Fire Strips

Advanced Expansion Technology

RESSA intumescent fire door strips are engineered with a proprietary heat-activated expansion process that ensures rapid and uniform swelling of seals in fire, creating an impenetrable barrier against fire and smoke.

Superior Self Adhesive Performance

Surface mounted fire door strips equipped with industrial-grade adhesive, our strips self adhere firmly to a variety of surfaces, ensuring a long-lasting seal that won’t degrade over time or under extreme temperatures.

intumescent -RESSA RPB Series Fire door strips

Multi-Functional Sealing Performance

Beyond fire door insulation, some our intumescent fire door strips also offer excellent waterproof property, smoke prevent property, acoustic insulation and thermal properties, adding additional value to the installation.

BS476 Test RESSA RPB Series Intumesent Fire Strips

Tested Prooved and Certified Quality

Our products pass the testing of fire doors integrity and insulation test according to the BS476 test standard and have received certification from recognized safety standards organizations, assuring their effectiveness and reliability.

Manufacturing Process of Intumescent Fire Door Strips

  1. Raw Material Preparation: Gather materials including different kinds of fireproof intumescent materials, self adhesive, additives… ensure material expand to meet quality standards of fire doors requirement.
  2. Mixing: Mix the raw materials according to the formula and prepare them under specific temperature and humidity conditions. This may involve blending the expanding materials with other additives to achieve the desired physical and chemical properties.
  3. Extrusion or Calendering: Use an extrusion machine or pressing machine or inserting machine to shape the mixed intumescent materials, forming the initial shape of the intermittent strips.
  4. Cutting and Shaping: Cut the intermission strips to the specific dimensions and shapes. Precise molding may be achieved using molds or cutting tools.
  5. Quality Testing: Perform quality tests, including dimension checks, expansion performance, fire resistance, etc.for intumescent gasket.
  6. Packaging and Dispatch:Package the qualified intumescent strips and prepare them for dispatch to the market.
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Intumescent strips production process

Our Certificates in Intumescent Fire Door Strips

RESSA Test certificate (4)
RESSA Test certificate (5)
RESSA Test certificate (6)
RESSA Test certificate (1)

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Fire Door Strips FAQs

Fire Door Strips are specialized seals installed on fire doors to prevent the passage of smoke, flames, and toxic gases during a fire, enhancing the door’s ability to compartmentalize and contain the spread of fire.

Over-painting of fire door strips should not compromise performance in a fire situation – however, do not suggest paint over fire door strips as this will certainly compromise the sealing containment performance and use life. If the intumescent strips on fire doors has already been painted over, you will need to replace it. Our seals are available in a range of colours, plus woodgrain and metallic finishes, so over-painting should not be necessary.

In the event of a serious fire, fire doors are one of the most important components in ensuring safe exit, containing the fire and saving lives. But they can be rendered useless by not using the correct components including intumescent strip. Gaps around the four sides of a fire door leaf are essential, it is the only way the door can open and close. But these gaps create a point of weakness, where fire can take hold and destroy the door, and toxic and smoke can pass through. RESSA intumescent strip works by sealing around the edges and gaps of a fire door and door frames in the event of a fire.

In essence, all intumescent do the same job, but not necessarily in the same way. You’ll need to know which specifications you require; consult our technical team to discuss this area in depth at [email protected].

Yes, RPB Series flexible fire door strips are suitable for both new builds and for retrofitting into existing structures, providing an effective fire-stopping solution. The intallation method is very easy by self-adhesive.

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