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EX-2995 Polyurethane Prepolymer Based on TDI/Polycaprolactone Polyols Equivalent to ECP95A

Name: EX-2995 Polyurethane Prepolymer Based on TDI/Polycaprolactone Polyols Equivalent to ECP95A
Brand: Qingdao Exceed Fine Chemicals Co.,Ltd
SKU: EX-2995
Price: 2.00 USD
Availability: InStock

Product Details

Place of Origin: China

Brand Name: EXCEEDCHEM

Certification: ISO 9001:2015

Model Number: EX-2995

Payment & Shipping Terms

Minimum Order Quantity: 960 Kilograms

Packaging Details: 200kg net per drum standard

Delivery Time: 7-15 working days

Payment Terms: T/T,L/C

Supply Ability: 30000 Kilograms per Month

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Product Details

Product Description

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                                                                                                                                                                                                                                                                                                                                    TDI based polyurethane prepolymer, polycaprolactone polyols prepolymer, ECP95A equivalent polyurethane
                      

Product Name:	TDI Based Polyurethane Prepolymer	Appearance At 20°C:	Waxy Solid
NCO Content:	6.2 ± 0.3%	Viscosity At 80°C:	700 ± 300 MPa·s
Chain Extender:	MOCA	R Value (NCO/OH):	1.05-1.1
Mixing Ratio (PHR):	18.2-18.5	Pot Life:	3-5 Minutes
Demold Time:	30-50 Minutes	Post Cure:	12-16 Hours At 100°C
Hardness:	95 ± 2 ShoreA	Tensile Strength:	50 MPa

Product Name:	TDI Based Polyurethane Prepolymer
Appearance At 20°C:	Waxy Solid
NCO Content:	6.2 ± 0.3%
Viscosity At 80°C:	700 ± 300 MPa·s
Chain Extender:	MOCA
R Value (NCO/OH):	1.05-1.1
Mixing Ratio (PHR):	18.2-18.5
Pot Life:	3-5 Minutes
Demold Time:	30-50 Minutes
Post Cure:	12-16 Hours At 100°C
Hardness:	95 ± 2 ShoreA
Tensile Strength:	50 MPa

EX-2995 Polyurethane Prepolymer Based on TDI/Polycaprolactone Polyols Equivalent to ECP95A

EX-2995 Polyurethane Prepolymer Based on TDI/Polycaprolactone Polyols

EX-2995 is a high-quality prepolymer based on TDI/Polycaprolactone Polyols. As a waxy solid at room temperature, this prepolymer is purpose-formulated for casting polyurethane elastomer products with demanding mechanical performance requirements.

Product Overview

The product is characterized by high mechanical strength, excellent wear resistance, long service life, and easy processing characteristics. When cured with MOCA chain extender, EX-2995 delivers finished elastomers suitable for the most abrasive and high-load environments encountered in mining and heavy machinery applications.

Product Specifications

Property	Unit	EX-2995	Testing Standard
Appearance (20°C)	--	Waxy Solid	Visual
NCO Content	%	6.2 ± 0.3	HG/T 2409
Viscosity (80°C)	mPa*s	700 ± 300	GB/T 12009.3

Casting Processing Parameters

Process Step	Unit	HC-2995
Pre-heating Temperature	°C	70 ± 5
Pre-heating Time	Hour	4-6
Chain Extender	--	MOCA
R Value (NCO / Chain Extender)	--	1.05-1.1
Mix Prepolymer Temp.	°C	75-80
Mix Chain Extender Temp.	°C	110-120
Ratio (PHR)	Parts per Hundred Resin	18.2-18.5
Casting Mold Temp.	°C	100
Oven Temp.	°C	100
Pot Life	Minute	3-5
Demold Time	Minute	30-50
Post Cure (100°C)	Hour	12-16

Finished Part Properties -- EX-2995 / MOCA

Property	Unit	Value	Testing Standard
Appearance (25°C)	--	Light Yellow Elastomer	Visual
Hardness	ShoreA	95 ± 2	GB/T 531.1-2008
Density	g/cm³ (25°C)	1.19	GB/T 533-2008
100% Modulus	MPa	9.0	GB/T 528-2009
300% Modulus	MPa	25.0	GB/T 528-2009
Tensile Strength	MPa	50	GB/T 528-2009
Elongation at Break	%	372	GB/T 528-2009
Angle Tear Strength	kN/m	110	GB/T 529-2008
DIN Abrasion	mm³	45	GB/T 9867-2008
Resilience (Impact Rebound)	%	35	GB/T 1681-2009

Test results based on a 100 g sample molded in a rectangular flat plate. Demolding time depends on part size and mold geometry; larger or complex parts require appropriately extended demolding time and post-cure duration.

Key Performance Advantages

High Mechanical Strength: 50 MPa tensile strength with 372% elongation delivers outstanding load-bearing capacity for heavy-duty industrial components.
Exceptional Wear Resistance: DIN abrasion of only 45 mm³ ensures prolonged service life in high-abrasion mining and machinery environments.
Superior Tear Resistance: 110 kN/m angle tear strength prevents crack propagation in dynamic seal, gasket, and roller applications.
Efficient Processing: 3-5 minute pot life and 30-50 minute demold time enable rapid production cycles for medium to large cast parts.

Step-by-Step Processing Guide

Prepolymer Preparation: Pre-heat HC-2995 at 70-75°C for 4-6 hours until completely melted. Transfer to a clean, dry container, heat to 85-90°C, and degas under vacuum (-0.1 MPa) until no bubbles are visible on the material surface.
Chain Extender Preparation: Weigh a quantitative amount of MOCA and heat to approximately 120°C until fully melted. Keep ready for use.
Mixing: Control the degassed prepolymer temperature at 75-80°C. Add melted MOCA at a ratio of 18.2-18.5 PHR (per 100 parts prepolymer). Stir evenly within the pot life window. Pigments can be added together with the chain extender.
Second Degassing: Perform a second vacuum degassing step within the pot life window, keeping degassing time under 1 minute until no obvious bubbles remain.
Casting: Pour the mixed material into a preheated mold (100°C) coated with polyurethane-specific release agent. Avoid introducing bubbles. After bubbles float to the surface, remove them with flame treatment. For vulcanizer-molded parts, apply pressure before the surface loses tack but before full hardening.
Demolding: Demold after 30-50 minutes. Larger parts require extended demolding time.
Post-Curing: Place the demolded part in an oven at 100°C for 12-16 hours until full physical properties are achieved.

Storage & Handling Notes

Storage Conditions: Store in a cool, dry place away from moisture, high temperature, and direct light. Shelf life of unopened prepolymer is 12 months.
After Opening: Use as soon as possible; seal immediately after each use. If available, purge the container with N2 before resealing to prevent moisture contamination.
Metal Bonding: Bonding prepolymer to metal or other substrates requires surface treatment and primer coating. Consult the company's technical staff for guidance.
Safety: The prepolymer has a slight pungent odor. Ensure adequate ventilation in the working environment. Use appropriate protective equipment to avoid spills, contamination, and inhalation.
Disclaimer: All technical data and usage suggestions are based on our experimental conditions and working environment. It is the user's responsibility to test processing methods and finished part properties to verify suitability for their specific process and application.

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Liquid Solvents

EX-2995 Polyurethane Prepolymer Based on TDI/Polycaprolactone Polyols Equivalent to ECP95A

TDI based polyurethane prepolymer

polycaprolactone polyols prepolymer

ECP95A equivalent polyurethane

High Rebounding TDI Polyurethane,

Polyester TDI Based Polyurethane,

TDI MDI Polyurethane

TDI Based Polyurethane

MDI Based Polyurethane

Polyurethane Curing Agent

Cold Cast Polyurethane

Thermoplastic Polyurethane Resin

Adipic Acid And Its Esters