Polyurethane rubber PT FLEX 85 A+B

Two-component elastomer polyurethane system, hardness 85 Shore A, for moulding and casting. Flexible and fast curing. For making moulds, e.g. for casting synthetic resin, plaster, concrete.

1000 g + 1000 g.

The PUR rubber PT-Flex 85 was specially developed for prototyping and modelling applications. The two-component polyurethane system is ideal for casting decorative objects, production parts, tools, models, patterns, duplicates of master moulds and much more. By adding pigments for synthetic resins, PT Flex 85 parts can be coloured very well to cast objects in all colours.

APPLICATION

Seal models with porous surfaces, e.g. made of wood, plaster, stone, earthenware or masonry, before moulding (e.g. with several layers of release wax, release soap or PVA release agent) and apply release agent (e.g. PVA release agent). Seal models made of modelling clay containing sulphur (e.g. plasticine containing sulphur) with PVA or shellac and apply release agent.

Only mould dry models - if you use a release agent, make sure that it has dried well on the model.

Bring component A + component B to room temperature before mixing and prepare all tools clean and dry. The surface and air temperature should be > 15 °C during processing and the entire curing time.

First pour component B into a clean and dry mixing vessel made of metal or plastic. Add the appropriate amount of component A (mixing ratio 100:100 by weight). Mix thoroughly, avoiding the formation of bubbles if possible. Then apply the mixture immediately and quickly to the model and allow to harden at room temperature. The model can be removed from the mould after approx. 45 minutes (at 23 °C room temperature); the final curing properties are achieved after approx. seven days.

The room temperature has an effect on the curing time: Heat accelerates the curing process, lower temperatures slow it down. Both components react with moisture, so close the container as quickly as possible after opening.

It is not advisable to apply another layer after one has been poured and dried. There will be no good bonding.

TECHNICAL DATA

Contents: 1 kg comp. A + 1 kg comp. B

Technical properties

Properties after curing

From 24 August 2023, appropriate training must be provided before industrial or commercial use.

Polyurethane rubber PT-FLEX 85 COMPONENTS A:

The product is subject to labelling according to GHS/CLP directives. Labelling according to Regulation (EC) 1272/2008:

UFI: HG50-Q0UW-F00Y-DSD2

GHS07, GHS08

Signal word: DANGER

Contains: Polymeric methylene diphenyl diisocyanate (MDI) (Including isomers and oligomers.)

H315 Causes skin irritation. H317 May cause an allergic skin reaction. H320 Causes eye irritation. H332 Harmful if inhaled. H334 May cause allergic or asthmatic symptoms or breathing difficulties if inhaled. H335 May cause respiratory irritation. H351 Suspected of causing cancer. H373 May cause damage to organs (lungs and respiratory system) through prolonged or repeated exposure.

P203 Obtain, read and follow all safety precautions before use. P260 Do not breathe fumes, vapours, mists or sprays. P264 Wash thoroughly after handling. P271 Use only outdoors or in a well-ventilated area. P272 Contaminated clothing should not be left at the workplace. P280 Wear protective gloves, protective clothing, eye protection and face shield. P284 Wear respiratory protection if ventilation is inadequate. P302+P352 IF ON SKIN: Wash with plenty of soap and water. P304+P340 IF INHALED: Remove person to fresh air and keep comfortable for breathing. P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to handle. Continue rinsing. P317 Get medical attention. P318 IF exposed or concerned, get medical attention. P319 Get medical attention if you feel unwell. P333+P317 If skin irritation or rash occurs: Get medical attention. P337+P317 If eye irritation persists: Get medical attention. P342+P316 If respiratory symptoms occur: Get medical attention immediately. P362+P364 Take off contaminated clothing and wash before reuse. P403+P233 Keep in a well-ventilated place. Keep container tightly closed. P405 Storage is blocked. P501 Dispose of contents and container in accordance with local, regional and national regulations.

Additional information: EUH 204 Contains isocyanates. May cause an allergic reaction. Persons sensitive to isocyanates should discontinue use. Prolonged exposure to isocyanates may cause lung damage. This is one part of a two-part system. Read and understand the hazard statements in Part B before use.

Polyurethane rubber PT-FLEX 85 COMPONENT B:

The product is subject to labelling according to GHS/CLP directives. Labelling according to Regulation (EC) 1272/2008:

UFI: GD50-705H-500G-RET0

GHS07, GHS09

Signal word: CAUTION

Contains: Dimethylthiotoluenediamine

H317 May cause an allergic skin reaction. H411 Toxic to aquatic life with long lasting effects.

P261 Avoid breathing dust / fume / gas / mist / vapour / spray. P272 Do not wear contaminated work clothing outside the workplace. P273 Avoid release to the environment. P280 Wear protective gloves / protective clothing / eye protection / face shield. P302+P352 After contact with skin: Wash with plenty of soap and water. P333+P317 If skin irritation or rash occurs: Get medical attention. P362+P364 Take off contaminated clothing and wash it before reuse. P391 Take up spillages. P501 Dispose of contents/container in accordance with regulations on hazardous waste or packaging and packaging waste.

Additional information: This is one part of a two-part system. Read and understand the hazard statements in Part B before use.