Chem-Set™ C-30 Marblemaster "Dripless" Seaming Adhesive - New Colors


ChemSet C-30 is a two-part methacrylate, super flexible, dripless/non-sag, low shrink, low exotherm, ultra violet light stable, non-yellowing hard surfacing adhesive designed for the nearly seamless bonding of Porcelain, Sintered Stone, Glass, Engineered Stone, Marble, Quartz, and Natural Stone products.

View the Chem-Set C-20 and C-30 Cross Reference Sheet

Fabrication of mitered edges, laminations and deck seams on:



  • Non Drip / No Sag 
  • Flexible Adhesive 
  • Auto-dispense system 
  • Invisible seams 
  • Pre-mixed in 15 natural stone colors 
  • High strength 
  • UV resistant 
  • Trimmable 
Combined at a ratio of 10:1 (10 parts resin, one part activator), ChemSet C-30 Marblemaster has a working time of 10 to 15 minutes, with a 5 to 10 minute De-Roping Time, and achieves nearly 90 percent of its ultimate strength in 45 to 60 minutes at room temperature curing.

ChemSet C-30 Marblemaster offers a combination of high strength, stiffness, and toughness as well as the ability to bond very strongly to a wide variety of hard surface or inorganic materials.

ChemSet C-30 Marblemaster permits the seasoned fabricator the opportunity to apply the adhesive to vertical surfaces, as well as horizontal surfaces, without dripping, and upon gelation, gives the fabricator an extended window (5 to 10 minutes) to de-rope, or trim with a single blad- ed straight edge razor blade, the excess from the stone slab without ripping the adhesive out of the joint, nor damaging the surface of the stone.


Working Time 10 - 12 min
De-roping Time 5 - 10 min
Fixture Time 20 - 30 min
Routable 45 - 60 min
Operating Temperature 65°F – 85°F (18°C – 30°C)
Gap Filling 0.250 inches — 5mm
Mixed Density 8.6 lbs/gal (0.98 g/cm^3)
Viscosity - Adhesive 200,000 – 350,000 cps
Viscosity - Activator 75,000 cps
Color - Adhesive Various
Color - Activator Colorless/Translucent
Mix Ratio 10:1
Tensile Strength - Natural Stone 4,000 – 5,000 PSI / Substrate Failure
Tensile Strength - Quartz 4,500 – 6,000 PSI / Substrate Failure
Flash Point 51°F (11°C) See SDS for more Information
Shelf Life 2 years
Resistances to: Susceptible to:
Hydrocarbons, Acids and Bases, Vinegar, Wine and condiments, Most household foods Polar solvents, Super strong acids and bases
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