Hodgson Firestrip 30 Glazing Seal is a flexible, high-tack intumescent strip developed for approved fire-resistant glazing systems in timber doors and timber screens.
The 12 × 3mm strip is installed between the fire-resistant glass and the glazing beads. During normal use, it provides continuous contact within the glazing pocket. When exposed to fire conditions, the intumescent material reacts to help restrict the passage of fire and smoke around the perimeter of the glass.
Firestrip 30 is supplied in 15m and 150m rolls, with Brown and White colour options.
Firestrip 30 is designed for use within suitable 30-minute fire-resistant glazing systems in:
It has been tested with a range of insulating and non-insulating fire-resistant glass products.
The selected glass, aperture dimensions, glazing beads, setting blocks and bead fixings must all match the applicable fire-test evidence, Certifire detail or doorset assessment.
The product has a high-tack surface that provides good adhesion to suitable glass and timber surfaces. This helps keep the strip correctly positioned while the glass and glazing beads are assembled.
The tacky surface is an installation aid. It does not structurally retain the glass and does not replace:
Firestrip 30 is intended to be installed under positive compression between the glass and the glazing beads.
Firm and consistent bead pressure helps establish continuous contact around the glass perimeter. The beads must then be mechanically secured using the fixing arrangement required by the relevant glazing-system evidence.
Do not use the strip to compensate for an incorrectly sized glass pane, oversized rebate or unsuitable glazing beads.
The pliable strip can be measured and cut to suit the individual sides of the glazed aperture.
Its flexible roll format helps installers:
The strip should not be stretched during installation. Stretching may cause it to retract and create gaps at the corners.
The stocked colour options are:
Firestrip 30 can be overcoated with compatible paints and decorative wood stains. Any applied finish must remain consistent with the requirements of the complete glazed doorset or screen.
To calculate the required quantity, measure the complete perimeter of every glazed aperture and account for the seal required on both faces of the glass where specified.
Hodgson identifies Firestrip 30 as an intumescent strip sealant for 30-minute fire-resistant glazing applications in timber doors and screens. It is referenced under BWF Certifire certificate CF297.
The product does not independently provide a 30-minute fire rating. Fire performance belongs to the complete tested or assessed glazed assembly, including:
Some certified constructions provide integrity only, while insulation performance may vary according to the selected glass and complete tested system.
Manufacturer literature refers to resistance to the passage of fire and smoke under fire-test conditions. This must not be treated as a separate ambient-temperature cold-smoke classification.
Where a doorset requires cold-smoke control, confirm that the complete doorset and glazing arrangement have appropriate supporting evidence.
Before ordering or installing Firestrip 30, confirm:
Do not select the product solely because its 12 × 3mm dimensions fit the available glazing pocket.
| Product Name | Hodgson Firestrip 30 Glazing Seal |
| Manufacturer | Hodgson Sealants |
| Product Type | High-tack intumescent glazing strip sealant |
| Profile Size | 12 × 3mm |
| Stocked Roll Lengths | 15m and 150m |
| Stocked Colours | Brown and White |
| Manufacturer Colour Names | Mahogany and Off-White |
| Primary Application | Approved fire-resistant glazing systems in timber doors and timber screens |
| Published Fire Application | 30 minutes as part of a suitable tested or assessed glazing system |
| Suitable Glass | Approved insulating and non-insulating fire-resistant glass |
| Adhesion | Excellent adhesion to suitable glass and timber surfaces |
| Required Bedding | Positive compression |
| Movement Accommodation | ±10% |
| Force to Compress by 20% | Approximately 1.4kg/cm² |
| Density | Approximately 1.2g/cm³ |
| Shrinkage | Less than 1% |
| Slump | Nil |
| Staining | Nil |
| Application Temperature | +5°C to +30°C |
| Published Service Temperature | +5°C to +40°C |
| Resistance to Mould | High |
| UV Resistance | Excellent |
| Paintability | Can be overcoated with compatible paints and decorative wood stains |
| Published Predicted Service Life | In excess of 20 years |
| Shelf Life | 12 months when stored flat in unopened original packaging under cool, dry conditions |
| Certification Reference | BWF Certifire CF297; confirm the current certificate revision and applicable construction before specification |
| Standalone Fire Rating? | No — performance belongs to the complete glazed assembly |
| Standalone Cold-Smoke Rating? | No separate ambient-temperature smoke classification should be assumed |
| Standalone Acoustic Rating? | No |
| Roll Length | Colour | Profile Size | Product Code |
|---|---|---|---|
| 15m | Brown | 12 × 3mm | MAS/30/12X3/15M/BRN |
| 15m | White | 12 × 3mm | MAS/30/12X3/15M/WHT |
| 150m | Brown | 12 × 3mm | MAS/30/12X3/150M/BRN |
| 150m | White | 12 × 3mm | MAS/30/12X3/150M/WHT |
Certifire CF297 contains multiple constructions using different fire-resistant glasses, timber-door or screen arrangements and glazing details.
The applicable construction determines:
The relevant construction must be checked before manufacture or installation.
Firestrip 30 must be installed as part of a tested, certified or assessed fire-resistant glazing system.
Before beginning, check the applicable CF297 construction or doorset evidence for the permitted glass, pane dimensions, timber construction, glazing beads, setting blocks and mechanical fixings.
Confirm:
Do not machine a certified fire door unless its evidence permits the proposed glazed aperture.
All timber, glass and glazing surfaces must be:
Install the product at an ambient and substrate temperature between +5°C and +30°C.
Where the opening is not already rebated, secure the first set of glazing beads to form the rebate.
Use the fixing type and spacing required by the approved construction. Hodgson’s fitting instructions require pins or screws to be angled at 45° so they pass beneath the glass.
Leave the backing paper in place while positioning the strip.
Begin with the top rebate. Run the edge of the backing paper along the rebate platform so that the Firestrip 30 reaches the required sightline.
Repeat the process along both side rebates and then the bottom rebate.
For a larger rebate, the backing paper may need to be held slightly above the platform to position the strip at the correct sightline.
Cut the strip cleanly at each corner and butt the adjoining ends closely together.
Do not overlap the corner joints.
Overlapping creates excessive local thickness and may prevent consistent contact between the glass, Firestrip and glazing beads.
Once the first perimeter is positioned correctly, remove the backing paper carefully.
Check that the strip remains:
Install the setting blocks specified by the approved glazing construction.
The setting blocks support the weight of the glass and maintain its required edge clearances. Firestrip 30 must not be used as a load-bearing support.
Centralise the approved glass within the frame and place it onto the setting blocks.
Press firmly and evenly around the glass perimeter to establish full contact with the first Firestrip 30 seal.
Do not apply concentrated pressure to a glass corner or damaged edge.
Apply a second continuous perimeter of Firestrip 30 against the exposed glass face.
The strip may be positioned by running the backing-paper edge along the rebate platform or applied directly to the glazing beads, according to the approved arrangement.
Remove the backing paper and ensure that all corner joints are tightly butted.
Position the glazing beads against the Firestrip 30 and apply firm, even pressure to bed them into the strip.
This should create positive compression and consistent contact between the strip, glass and beads.
Check that:
Fix the glazing beads with the steel pins or screws required by the approved construction.
The exact fixing length, spacing and position must come from the applicable evidence. Hodgson’s general fitting method requires the fixings to be angled at 45° so they pass beneath the glass.
Do not use a generic fixing schedule where the certificate or doorset evidence specifies another arrangement.
After the beads have been secured, carefully trim any Firestrip 30 projecting above the required sightline with a sharp knife.
Avoid damaging the glass, glazing beads or the remaining seal.
Confirm that:
Firestrip 30 does not independently provide 30 minutes of fire resistance.
Do not change the glass, glazing beads, setting blocks, fixings, pane dimensions or timber construction without suitable supporting evidence.
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