Stone Master Molds Rubber Molds for Concrete, Concrete Splash Block Mold, 16.5″L x 9.5″W x 2.25″D

Stone Master Molds Rubber Molds for Concrete, Splash Block Mold

Create your own durable concrete splash guards with Stone Master’s Concrete Splash Block Mold — the pro’s choice for quality and savings.

This heavy-duty rubber mold makes a 16.5″ x 9.5″ x 2.25″ splash block and is built to last for hundreds of pours with proper care. The mold itself measures 19″ x 12″ x 2.75″ and weighs about 15 lbs, giving you solid, professional-grade results every time.

Forget messy release agents — ours needs none! That means easier cleanup, smoother color finishes, and zero waste. Customize your own colors, save money, and enjoy the satisfaction of making your own concrete splash blocks right at home.

Proudly made in the USA — from materials to craftsmanship.
🧱 Built strong. Built smart. Built to last.

Manufactured Stone Basic Mixing Procedures Using A Pre-bagged Concrete Mix for your Concrete Splash Block Molds:

This is one suggestion for mixing the concrete for the concrete splash block mold. Of course, there are many other instructions available online, including videos.

MOST IMPORTANTLY, BE SURE TO USE A CONCRETE MIX THAT CONTAINS PORTLAND CEMENT.

We recommend Sakrete Maximizer, as it has lightweight aggregate, is high strength, and yields more product, but there are many kinds you can use. Follow the manufacturer’s instructions for mixing.

If using pigment, add desired iron oxide pigment to mixer (100% pure, no additives). These can easily be found on Amazon, etc. In addition, a plasticizer can be added to reduce the amount of water in the mix. Pour into the molds which may already have coloring additives… NO RELEASE AGENT NECESSARY.

Next, vibrate molds to release air bubble. Finally, cure the concrete in the gutter block mold for approximately 24 hours at the minimum of 70 degrees Fahrenheit before demolding. Higher humidity is desired. Molds can be covered with a tarp to retain more heat and humidity. Continue to cure demolded stones at 70 degrees or greater until ready.