BORNIT^® Hot Sealing Rail

status technical data sheet

30th September 2026

Areas of application

BORNIT^® Hot Sealing Rail is used to create a flexible connection between the track bed and the pavement at rails, as well as for sealing vibration-exposed joints in concrete structures in both building and civil engineering applications at transition constructions. BORNIT^® Hot Sealing Rail may be used where the rail has subsided by less than 0.8 mm.

Type and properties

BORNIT^® Hot Sealing Rail is based on polymer-modified bitumen as well as mineral and highly elastic special fillers. It is a fusible, hot workable sealing compound, characterised by high elasticity and good vibration resistance.
BORNIT^® Hot Sealing Rail has good adhesive properties at the substrate, high heat and cold resistance, and is water-impermeable, ageing-resistant as well as not sensitive to water and de-icing salts.
Quality according to TL FUG StB.

Advantages

Surface

The joints must be dry and clean. Oil and grease residues as well as loose particles must be removed. Joints must be blown out with compressed air.

Processing

The joints must be dry and clean. Any traces of oil and grease, as well as loose particles, must be removed. Joints must be blown out with compressed air. Before pouring, the joint flanks must be treated with BORNIT^® Hot Compound Primer or BORNIT^® Hot Compound Primer Fix. Peel the container off the grouting compound and place it in the melting vessel. A maximum melting temperature of +180°C must be observed, and the compound must be kept in motion using a stirrer to prevent localised overheating and settling. Only melt the amount expected to be used that day, as repeated melting can alter the properties. If it starts to rain, stop the grouting process!

Consumption

approx. 1.3 kg/l of joint content
The consumption of BORNIT^® Hot Compound Primer amounts to 4 % of the sealing compound to be applied.

Product type

bituminous rail sealing compound

Base

polymer-modified bitumen

Density at +20 °C

approx. 1.3 g/cm³

Softening point acc. to cone/ring

>+85 °C

Consistency

pourable after heating

colour(s)

black

Application

with pouring can

storage

protect from direct solar irradiation and moisture

Shelf life

in originally sealed containers storable for 12 months

Substances hazardous to health in terms of the ordinance on hazardous materials

keine

Hazard class according to ADR

keine

Flash point

> +230,0 °C

Melting temperature

max. +180 °C

Tendency for separation

<3.0 % by weight

Dimensional stability in heat (+45 °C, 24 hrs)

<6.5

Cold resistance (falling ball test with 4 balls, 5 m, -20 °C)

3 of 4

Elasticity at -20 °C (0.2 mm/s per 6 minutes)

> 2 mm

Flow length (+60 °C, 5 hours)

<5 mm

processing temperature

approx. +160 - 180 °C

Health and fire protection, occupational safety

To ensure safe handling of the product, the physical, safety, toxicological and ecological information provided online, the information in the current safety data sheet and the additional information on the label must be read and followed before purchasing or using the product! The applicable regulations, ordinances and laws must be complied with.

In case of doubt, please contact the BORNIT^® application technology department or the BORNIT^® service hotline on +49 375 2795 123.

Storage

The product’s storage period is 12 months. It is necessary to protect the cardboxes from moisture and direct sunlight.

Disposal note

Only recycle empty containers. Material residues can be disposed of in accordance with AVV-ASN: 170302 (bitumen mixtures with the exception of those that come under 170301).

Note

The information set out above supersedes all previous technical information relating to the product. The previous information is therefore no longer valid. The details have been compiled in accordance with the latest state of the art in application technology. Please note, however, that depending on the condition of the building, it may be necessary to deviate from the working method recommended in this data sheet. Unless otherwise agreed in an individual contract, all information contained in this data sheet is non-binding and therefore does not constitute an agreed product specification. We reserve the right to make changes to the information contained in this data sheet at any time.

The product illustrations are to be understood as examples. No legally binding claim can be derived from them. We reserve the right to make changes to the product’s appearance.

Our packaging complies with the relevant legal requirements and with Regulation (EU) 2025/40 on packaging and packaging waste (PPWR). The technical documentation in accordance with Annex VII is available and can be provided on request by email to info@bornit.de.

UN-number

No dangerous good in sense of these transport regulations.

Recommended, personal protective equipment: