Bayflex® XGT-15 Bayer Polyurethane (Polyether, MDI)

Product Description

Bayflex XGT-15 is an elastomeric polyurethane system used in the reaction injection molding (RIM) process. The formulated system is supplied as two liquid components: Component A is a diphenylmethane diisocyanate (MDI) prepolymer, and Component B is a polyether polyol system. Note: The polyol component phase separates upon standing and must be thoroughly mixed via mechanical means prior to use.

Bayflex XGT-15 system has a flexural modulus of 16,000 psi* at room temperature. It is used in applications requiring long shot times allowing large parts to be made on smaller equipment. The Bayflex XGT-15 system is suitable for use in glass encapsulation applications, or in applications requiring excellent impact properties, such as bus and truck bumpers or equipment housings. As with any product, use of Bayflex XGT-15 system in a given application must be tested (including but not limited to field testing) in advance by the user to determine suitability.

General

Material Status

Commercial: Active

Availability

North America

Features

Good Impact Resistance

Uses

Automotive Bumper

Housings

Forms

Liquid

Processing Method

Reaction Injection Molding (RIM)

Physical	Nominal Value	Unit	Test Method
Specific Gravity			ASTM D792, ASTM D1622
Molding Shrinkage - Flow (0.125 in)		in/in	Internal Method
Mechanical	Nominal Value	Unit	Test Method
Flexural Modulus (0.125 in)		psi	ASTM D790
Taber Abrasion Resistance (1000 Cycles, 1.0E+6 g, H-18 Wheel)		mg	ASTM D1044
Elastomers	Nominal Value	Unit	Test Method
Tensile Strength (Break, 0.125 in)		psi	ASTM D412
Tensile Elongation (Break, 0.125 in)		%	ASTM D412
Tear Strength² (0.125 in)		lbf/in	ASTM D624
Hardness	Nominal Value	Unit	Test Method
Durometer Hardness			ASTM D2240
Shore A, 0.125 in
Shore D, 0.125 in
Thermal	Nominal Value	Unit	Test Method
CLTE - Flow (0.125 in)		in/in/°F	ASTM D696
Thermoset	Nominal Value	Unit	Test Method
Thermoset Components³
Part A
Part B
Shelf Life (86°F)		wk
Additional Information
Part A Type: Isocyanate Appearance: Water white to clear pale yellow liquid Specific Gravity @ 25°C: 1.21 Viscosity @25°C: 750 mPa-s Flash Point PMCC: 213 °C Part B Type: Polyol Appearance: Colorless to pale yellow liquid Specific Gravity @ 25°C: 1.04 Viscosity @25°C: 1200 mPa-s Flash Point PMCC: 114 °C Molding Parameters Material Temperature: 32 to 38 °C Mold Temperature: 60 to 70 °C Typical Cure Time, 0.125 in: 240 to 300 sec Polyol Nucleation - Specific Gravity: 0.75 to 0.80 0 shot time: 10 to 14 sec
Related Terminology
Product names can be difficult to match. You may have searched any one of these terms to find this product: Bayflex® XGT-15, Bayflex XGT15, Bayflex® , Bayflex, BayflexXGT15, XGT, XGT-15, XGT15, XGT:15, XGT/15, XGT+15, XGT_15, XGT 15, Polyurethane, Polyurethane (Polyether, MDI), Polyurethane Polyether MDI, PUR-Ether/MDI, PUREtherMDI, PUR-Ether:MDI, PUR-Ether+MDI, PUR-Ether-MDI, PUR-Ether_MDI, PUR-Ether MDI, PUR:Ether/MDI, PUR/Ether/MDI, PUR+Ether/MDI, PUR_Ether/MDI, PUR Ether/MDI, PUR, Bayer, PolyurethanePolyetherMDI, PUREther_MDI, PUREther MDI, PUR_EtherMDI, PUR EtherMDI, 15XGT
Features
Features may also be described by the following terms: Good Impact Resistance.
Uses
Uses may also be described by the following terms: Automotive Bumper, Automotive Bumpers, Housings, Housing.

Notes

¹Typical properties: these are not to be construed as specifications.

²Die C

³1.05 Index

Bayflex® XGT-15

Polyurethane (Polyether, MDI)

Supplied by Bayer MaterialScience LLC