One resin family, different published product roles
Marble Resin and GP Resin both appear within polyester-resin discussions, but their published roles are different. The Marble Resin TDS names cultured marble and artificial stone. GP Clear Resin is the separately published route for broad general-purpose FRP work.
This is a selection distinction, not a generic performance hierarchy. Use the actual product being made to decide which document is relevant first.
Start with the finished component
For the documented cultured-marble or artificial-stone contexts, begin with Marble Resin and its current TDS. For broad general FRP, begin with GP Clear Resin and the grade-specific information for that route.
A quartz or engineered-stone surface, a putty or filler base resin, a mould-facing finish, door or plywood lamination, or specified two-part epoxy casting requirement can point to another published product route. The resin name alone is not sufficient for selection.
Do not transfer grade-specific data
GP Clear Resin has separate product data. Do not transfer values, storage statements, product applications or finished-product expectations across the grades.
No source publishes a universal superiority claim between Marble Resin and GP Resin. This comparison intentionally avoids one.
Make the RFQ product-specific
That lets the discussion begin with the published role rather than a broad request for polyester resin.