Description
Overview
LATICRETE 333 Super Flexible Additive is a latex liquid for fortifying compatible thin-set mortars and specified cement mixes. It is selected where a strong, flexible bond is needed, including suitable plywood assemblies when used with the correct mortar.
Features
- Produces high-strength, shock-resistant mortar.
- Improves flexibility and sag resistance in the specified mix.
- Water-cleanable, non-flammable liquid.
Specifications
- Package: 5 gallon
- Type: Latex mortar additive
- Approximate coverage: 35–40 sq. ft. per gallon of additive with a 1/4 x 1/4 in. notched trowel; depends on the mortar installation
Downloads
- Laticrete 333 Super Flexible Additive Data Sheet
- Laticrete 333 Super Flexible Additive Safety Data Sheet
Applications
Use in interior or exterior installations where the selected LATICRETE thin-set specifies 333 additive. Substrate approval comes from the complete mortar-and-additive system, not from the liquid alone.
Plan Your Installation
- Identify the exact thin-set and its prescribed mixing liquid before ordering.
- Estimate additive needs from the mortar quantity and specified mix proportions; do not treat the liquid coverage estimate as a stand-alone coating rate.
- Check plywood and exterior installation details separately—the additive does not make every plywood surface suitable outdoors.
Common Planning Questions
Is 333 a surface primer?
No. It is an additive mixed into the specified mortar or cement mix, rather than a bonding primer applied by itself.
