Terostat-8597

Продуктов код:

Описание:

Terostat-8597 is a one component, moisture curing Direct Glazing Sealant with excellent sag resistance based on polyurethane, which cures by reaction with moisture to a soft elastic product. The skin formation and curing times are dependent on humidity and temperature, and the curing time also depends on joint depth. By increasing the temperature and moisture these times can be reduced; low temperature as well as low moisture retard the process.
The Direct Glazing Sealant demonstrates the following characteristics:
– excellent adhesion with Primer Terostat-8510 on glass, ceramic coated glass and on painted surfaces
– excellent adhesion on material residues
– high cure rate
– high UV resistance in connection with Primer Terostat-8510
– high shear strength, retained on ageing.

 

Application Areas:

Bonding of front, rear and side screens to the body of passenger cars, trucks, busses, forklift and tractor cabins as well as special vehicles. Single or double pane side window glazing in the bus and railway coach industry.

Technical Data:

Colour: black
Odour: weak
Consistency: smooth, sag-resistant paste
Density: approx. 1.2 g/cm3
Solids: 100%
Curing mechanism: moisture curing
Skin formation time: approx. 25 mins
(DIN 50014 standard climate: 23°C, 50 % rh)
Cure rate: approx. 5 mm/24 h
(DIN 50014 standard climate: 23°C, 50 % rh)
Shore-A-hardness (DIN 53505): approx. 55
Tensile strength (DIN 53504): approx. 8.5 MPa
Stress (DIN 53504): approx. 2.5 MPa at 100 % elongation
Elongation to break (DIN 53504): approx. 300 %
Shear strength: approx. 2 MPa (after 24 h DIN 50014)
(thickness 5mm, 5–6 MPa (fully cured)
based on DIN EN 1465)
Volume change (DIN 52451): <1%
Glazing time: maximum 25 mins *
Application temperature: 5°C to 35°C
In service temperature range: -40°C to 90°C
Short exposure (up to 3 hr.): 120°C
 

Preliminary remark:

Prior to application it is necessary to read the Safety Data Sheet for information about precautionary
measures and safety recommendations. Also, for chemical products exempt from compulsory label-
ling, the relevant precautions should always be observed
.


Application:

1. Cleaning
The surfaces to be bonded must be dry, free of oil, dust, grease and other contaminants. Glass or ceramic coatings as well as the painted surface are cleaned with Cleaner-FL. The residual cut layer (see below) should not be cleaned. If cleaning of this layer cannot be avoided, a drying time of a minimum of 30 minutes prior to sealant application has to be observed, because the adherents have to be absolutely dry.

2. Priming
Surface priming is carried out by a thin (ca. 0.05 mm wet) and even coating of Primer-8510 on the cleaned glass, ceramics or paint surface, using the applicator provided with the Repair Set. The primed area must be allowed to air dry for ca. 15 minutes before applying the Direct Glazing Sealant. Do not use a primer when the material is applied onto a bead of cut and cured adhesive/sealant left on the body flange. The cut surface – if not contaminated by dust or grease – provides an ideal substrate for application of fresh Terostat-8597.

3. Activation of pre-coated screens
Screens which have been pre-coated by the glass manufacturer with a PUR based adhesive/sealant must be treated with Activator Terostat-8525 to ensure trouble-free adhesion of Terostat-8597 on to the pre-coated layer. Terostat-8525 is applied with a wool applicator in a thin layer and allowed to air dry for ca. 15 minutes.
Terostat-8597 can then be applied in the normal manner but care must be exercised to take into ac-
count the 2 mm thickness of the pre-coating. Screens pre-coated with PUR based adhesive/sealant are used for instance on many types of VW/ Audi vehicles.

4. Application
Terostat-8597 can be directly applied from cartridges employing standard air or hand operated guns.
Teroson recommends the use of
– Teleskop Pistol Power-LineArt.-No. 141.84 S
– Teroson Staku Hand Pressure PistolArt.-No. 167.65 Y
The instructions included in the Teroson Glazing Repair Set contain a detailed description of the re-
pair operation.