XS PreCast is a commercial grade, hybrid GFRC, high early strength, pourable casting mix that is available in both white and gray cement. Can be colored with XS Color Packs or SC Color Packs (sold separately).


Product Data Sheet | download

Safety Data Sheet | download

XS Precast™ is a dual component precast concrete bag mix that greatly reduces the materials and labor required to construct traditional precast concrete. No reinforcement steel is required, thinner precast pieces are routine, and quicker production times are accomplished. A stronger, denser and more flexible cementitious composite is created by combining cutting-edge technology with modern fiber advancements. With a wide range of coloring and texture selections along with the
addition of optional aggregate loading (up to 10 lbs per bag) design considerations are nearly limitless. XS-Precast produces concrete countertops, fireplace mantles and facades, shower surrounds, wall panels, furniture and many other architectural elements. XS Precast is the perfect medium for residential, commercial, and industrial applications.



Fabrication of XS-Precast should be inside a shop. Casting should take place when shop temperature and all materials are maintained between 50°F (10°C) and 90°F (32°C) throughout all fabrication and curing. Product will dry and cure slower at cool temperatures and conversely, faster at warm temperatures. Full cure is reached at approximately 30 days, like concrete. Although rare, at high altitudes and dry climates, some pieces may require covering with plastic to slow the cure and avoid curling.



1 gal (3.8 L) XS Precast Modifier to 1 – 50 lb (22.7 kg) bag of XS Precast + up to 16 oz. (0.5 L) water


1 – 50 lb (22.7 kg) bag of XS Precast = approx. 9.8 ft² @ ½” (0.9 m² @ 12.7 mm) / 7.2 ft² @ ¾” (0.64 m² @ 19 mm) OR 0.43 ft³ (0.01 m³)

DENSITY | 126.1 lb/ft³ (2,018 kg/m³)

3 day – 9,800 PSI (67,569 kPa)
7 day – 10,540 PSI (72,671 kPa)
28 day – 10,730 PSI (73,981 kPa)

3 day – 610 PSI (4,206 kPa)
7 day – 635 PSI (4,378 kPa)
28 day – 690 PSI (4,757 kPa)

3 day – 505 PSI (3,482 kPa)
7 day – 545 PSI (3,758 kPa)
28 day – 550 PSI (3,792 kPa)

Reviews & Ratings

Tips & Tricks

Tips N Tricks For Applying Acrylic Sealer

Tips N Tricks For Applying Acrylic Sealer

There are so many fantastic brands of solvent acrylic sealer to choose from. Whether you are looking to create a pristine clear coat or change the color with pigment. The team at Select Surface Solutions have (3) three pro-tips that will help you choose the right...

Tips n Tricks for XS Mixes

Tips n Tricks for XS Mixes

Summer temps in June will average around 91 degrees. Shop temperatures will be warm, our AC’s will be working hard to lower the humidity. Both situations can make casting concrete challenging. To give yourself more working time with Xtreme Mixes, you should keep your...

My cart
Your cart is empty.

Looks like you haven't made a choice yet.