Polyurethane rubber Shore A 20, Poly 74-20

Poly 74-20 Liquid Rubber is a two component (A + B), liquid polyurethane system rubber that cures at room temperature (RTV) to a yellow Shore A20 rubber. This is the softest rubber in the Poly 74 series line of polyurethane molded rubber for molds and rubber products. Poly 74-20 is a castable rubber, but it can easily be thickened with CAB-O-SIL thickener for brush or spatible molds.

The Poly 74-20 is a very strong and flexible polyurethane casting rubber especially developed for the production of molds. Due to the HS (High Strength) quality the rubber is very suitable for pouring various concrete types such as GFRC, but also concrete types with additives and pigments. We see pOly 74- and 75-serie moulds ooften in wet casting manufacturers. In addition to pouring concrete, the Poly 74 series rubber is very suitable for casting with gypsum (such as Giluform 350 and SP10), epoxy, polyurethane resins, polyester, acrylics, silicones and other casting materials.

Packaging: Set 3 kg, Set 15 kg, Set 54 kg, drums packaging on request
Hardness (Shore A): 20
Mixing ratio: 1A:2B (by weight)
Pour Time (min.): 20
Demold time (uur): 16 uur (demold) / 7 days (100%)
Viscosity (cP): 800
Elongation (%): 1060
Tensile Strength (PLI): 43 (7,53 kN/m)
Breukbelasting (N/mm2): 14.36
Die C Tear Strength (PSI): 217 (1.5 Mpa)
Type of product: Polyurethane rubber

Downloads

TDS Poly 74-20
Physical Properties bulletin Poly 74-Serie
MSDS Poly 74-Serie Comp. A
MSDS Poly 74-serie Comp. B

UFI Poly 74 Series Part A: HA30-20KY-T00M-V7TF
UFI: Poly 74-20 Part B: QK30-K0P5-R003-U8JN

Mandatory information according to Regulation (EU) 2020/1149 regarding diisocyanates:
From 24 August 2023, adequate training is required for industrial or professional use. The training can be followed at the organization under the following link. Please take into account costs for this training. More information can be found at feica.eu/Puinfo and https://safeusediisocyanates.eu/

Personal protection:

Safety information:

Comp. A:
Signal word (CLP) : Danger
Contains : Polyether polyol-TDI prepolymer; m-tolylidene diisocyanate; toluene-diisocyanate
Hazard statements (CLP) : H315 – Causes skin irritation.
H317 – May cause an allergic skin reaction.
H319 – Causes serious eye irritation.
H332 – Harmful if inhaled.
H334 – May cause allergy or asthma symptoms or breathing difficulties if inhaled.
H351 – Suspected of causing cancer.
Precautionary statements (CLP) : P201 – Obtain special instructions before use.
P261 – Avoid breathing vapours, mist.
P280 – Wear protective gloves, eye protection, protective clothing.
P304+P340 – IF INHALED: Remove person to fresh air and keep comfortable for breathing.
P342+P311 – If experiencing respiratory symptoms: Call doctor, a POISON CENTER.
P501 – Dispose of contents and container to hazardous or special waste collection point, in accordance with local, regional, national and/or international regulation.

Comp. B:

Signal word (CLP) : Warning
Contains : diethylmethylbenzenediamine
Hazard statements (CLP) : H315 – Causes skin irritation.
H373 – May cause damage to organs through prolonged or repeated exposure.
Precautionary statements (CLP) : P264 – Wash hands, forearms and face thoroughly after handling.
P280 – Wear protective gloves/protective clothing/eye protection/face protection/hearing
protection.
P314 – Get medical advice/attention if you feel unwell.
P501 – Dispose of contents and container to hazardous or special waste collection point, in accordance with local, regional, national and/or international regulation.