Product info Denso Tok Band SK N2:
The TOK Band SK N2 is a high-quality bituminous joint tape made of polymer-coated road bitumen with excellent stretch and adhesion properties, especially at lower temperatures. The TOK Band SK N2 is provided on one side with a homogeneous, homogeneous adhesive layer (smooth side) and can therefore be adhered to the "cold" joint edge quickly, safely and without the use of a gas burner. The TOK Band SK N2 can be applied to the expertly cleaned, dust-free and dry flanks without pre-painting. The slightly profiled (wavy) side of the bitumen tape marks the side without adhesive coating. Later on, the "hot" asphalt mix will be added to this page.
The adhesion of the TOK Band SK N2 at the joint edge can be improved if necessary by the optionally available primer TOK SK Primer
Applications Tok Band SK N2:
The TOK Band SK N2 is preferably used for sealing joints in asphalt road construction, which are subject to special or high requirements.
An example is the track construction, where the joints on rails must absorb movements on a larger scale. Due to its highly flexible properties, the tape is also ideal for processing at lower temperatures when conventional bitumen joint tapes are already too stiff for comfortable processing. In the system with the TOK SK Primer, extreme strains of ≥33% are achieved at -10 ° C (+ 14 ° F). Even at -20 ° C (-4 ° F), the requirements for bitumen joint tapes to the adhesive and elongation according to the TL Fug-StB 15 are still met or exceeded.
According to the ZTV Fug-StB bitumen joint tape may only be installed in dry weather and a surface temperature of the asphalt surfaces of at least + 5 ° C (+ 41 ° F).
At temperatures from 0 ° C to + 5 ° C (+ 30 ° F to + 41 ° F) work can only be continued if additional measures are taken (eg preheating the flanks).
Requirements for the connecting flanks:
According to the ZTV Fug-StB, the following basic requirements apply:
For the processing of bitumen joint bands solid, flat, rectilinear flank surfaces are required. The connecting flanks must be folded, finely milled or cut or consist of prefabricated components. They must be free of impurities. Rust particles from steel parts must be removed. Adhesive residues should be removed with a wire brush or compressed air. The flanks must be dry.
Use of the TOK Band SK N2:
If the requirements for the connecting flanks are fully met, the TOK Band SK N2 can be attached to the flank without pre-painting. The test certificates according to the TL / TP Fug-StB have been provided.
If necessary, the primer TOK SK Primer can be used to optimize the adhesion of the bitumen joint tape to the flank and to meet the adhesion and expansion requirements of hot castings according to the ZTV Fug-StB 15. Depending on the weather, the skimming time of the TOK SK Primer in summer is only 3-5 minutes, which allows you to continue working quickly.
The TOK Band SK N2 is simply designed with the adhesive layer (smooth side) upwards on the prepared connecting flank.
The release paper should only be removed immediately prior to installation. The designed TOK band SK N2 is firmly pressed with the adhesive layer (smooth side) to the connecting flank by hand or an auxiliary tool.
ZTV Fug-StB 15 - bitumen joint tapes:
According to the ZTV Fug-StB, bituminous joint strips must be laid on rolled asphalt cover layers with a 5 mm strip overhang so that a so-called "rivet head" is formed when the asphalt is being rolled. This forms an additional seal on the surface and a clean "closure". In poured asphalt surfaces, the joint tape is installed flush with the flank.
The width of the joint tape must be at least 10 mm.
According to the ZTV Fug-StB and the TL Fug-StB, the material quality must be externally monitored and identified by the application of the Ü-mark (proof of conformity) on the packaging.
Store dry, without load and frost-free under normal conditions (ideally 15-20 ° C / 59-68 ° F).
Under these conditions, the TOK Band SK N2 can be stored for at least 2 years in the unopened original packaging from the date of manufacture.
The TOK-Band SK is delivered rolled up in worm form. The screws are supplied (separated by silicone paper) in boxes of dimensions 370mm x 370mm x 160 (144) mm. Each 30 boxes are packed on a Euro pallet (800 x 1.200mm).
Profile: 25x8 mm; m / carton: 60; m / pallet 1800
Profile: 30x10 mm; m / carton: 40; m / Pallet 1200
Profile: 35x8 mm; m / carton: 48; m / pallet 1440
Profile: 35x10 mm; m / carton: 40; m / Pallet 1200
Profile: 40x8 mm; m / carton: 36; m / pallet 1080
Profile: 40x10 mm; m / carton: 30; m / pallet 900