Order Products : sales@su-jiao.com

Baydur® 683

Category:	PUR, Unspecified , Polyurethane
Manufacturer:	Covestro - PUR
Trademark:	Baydur®
Fillers:	-
Ports:	Qinzhou, Shekou, Shanghai, Ningbo
Delivery Terms	FOB, CIF, DAP, DAT, DDP
PDF:	H4cYVk_Baydur-683.pdf
PRICE:	Order Products email sales@su-jiao.com

Wechat: WECHAT

Message
Baydur 683 is a rigid polyurethane structural foam system that is formulated for "hand cast" operations. It has a long open time to allow for adequate mixing and pouring without use of RIM machinery. The system can still be utilized with RIM equipment, however reactivity times are shortened accordingly. The system is supplied as two reactive components. Component A is a polymeric diphenylmethane diisocyanate (PMDI), and Component B is a formulated polyol system containing no CFC- or HCFC-blowing additives. The Baydur 683 system is used for applications requiring high compression strength foams,filling cavities and/or producing foam cores for overmolding. As with any product, use of the Baydur 683 system in a given application must be tested (including field testing, etc.) in advance by the user to determine suitability.

Message

Baydur 683 is a rigid polyurethane structural foam system that is formulated for "hand cast" operations. It has a long open time to allow for adequate mixing and pouring without use of RIM machinery. The system can still be utilized with RIM equipment, however reactivity times are shortened accordingly. The system is supplied as two reactive components. Component A is a polymeric diphenylmethane diisocyanate (PMDI), and Component B is a formulated polyol system containing no CFC- or HCFC-blowing additives.

The Baydur 683 system is used for applications requiring high compression strength foams,filling cavities and/or producing foam cores for overmolding. As with any product, use of the Baydur 683 system in a given application must be tested (including field testing, etc.) in advance by the user to determine suitability.

General Information
Uses	Structural Foam Foam
Forms	Liquid
Processing Method	Reaction Injection Molding (RIM) Casting

Physical	Nominal Value	Unit
Density	0.0641	g/cm³

Mechanical	Nominal Value	Unit
Compressive Modulus	24.4	MPa
Compressive Strength	0.538	MPa

Thermoset	Nominal Value
Thermoset Components
Component a	Mixing ratio by weight: 140
Component B	Mixing ratio by weight: 100

Additional Information
Part A Type: Isocyanate Specific Gravity @ 25°C: 1.24 g/cm³ Viscosity @25°C: 200 cps Part B Type: Polyol Appearance: Black liquid Specific Gravity @ 25°C: 1.08 g/cm³ Viscosity @25°C: 900 cps Hand Mix Reactivity: Cream Time: 55 sec Gel Time: 150 sec Tack Free Time: 185 sec Free Rise Density: 4 pcf

Resin Grade	Manufacturer	Category	Trademark
Teflon® PTFE 7C X	DuPont Fluoropolymers	PTFE	Teflon® PTFE
TOTAL Polystyrene Impact 8265	TOTAL Refining & Chemicals	PS (HIPS)	TOTAL Polystyrene
Formolon® 685	Formosa Plastics Corporation, U.S.A.	PVC Homopolymer	Formolon®
HiFill® TPU/I GF40	Techmer Engineered Solutions	TPU-Polyether	HiFill®
Hostacom XBR 169 G C12306	LyondellBasell Industries	PP Copolymer	Hostacom