News & Technical Insights
News & Technical Insights
Engineering perspectives from MENGWEI's R&D and production teams.
Five Points to Confirm Before Requesting a Polyether Polyol Quotation
A request for a polyether polyol quotation should clarify the intended use and provide a consistent basis for comparing technical information. A clear requirements brief covering the application, technical characteristics and test conditions, document versions, sample evaluation and delivery needs helps purchasing teams, research and development teams and suppliers work towards the same objective.
How to Select a Polyurethane System for a Sandwich Panel Project
Prepare the panel application, production method, validation conditions and sample records before selecting a PU system, so technical discussions and option evaluation have a clear basis.
How to Stabilize Cream Time in Rigid PU Sandwich Panel Production During High Humidity
Ambient humidity above 85% causes cream time to drift by 2-3 seconds across shifts in continuous lamination lines. This article walks through the chemistry behind the problem, three formulation strategies to mitigate it, and the trade-offs each strategy creates for downstream board properties.