Laticrete 3701 FORTIFIED MORTAR BED (60lb bag / Grey)

LATICRETE 3701 Fortified Mortar Bed is a polymer-enhanced, pre-blended thick-bed mortar. It needs only clean water for mixing. Download the official Product Data Sheet^[PDF] to review every technical detail.

Because the mortar reaches more than 4,000 psi compressive strength, it performs indoors, outdoors, and even under water. Consequently, it is ideal for shower pans, pools, fountains, and plaza decks where heavy loads are expected.

3701 Fortified vs. 3701 Lite Mortar

• Weight & Handling: A 60 lb bag of 3701 Fortified feels twice as heavy as a bag of 3701 Lite Mortar. However, the lighter option eases transport on multi-story projects.
• Coverage: Both bags cover similar square footage. Nevertheless, Lite’s lightweight aggregates lower the dead load on suspended slabs.
• Strength: 3701 Fortified delivers higher compressive strength; therefore, it suits forklift traffic or commercial kitchens.
• Silica Safety: 3701 Lite contains no respirable crystalline silica above OSHA limits. As a result, it is preferred on jobs with strict air-quality specifications.
• Cost: Fortified often beats Lite on cost per square foot. In addition, you save on freight when weight is not a constraint.

Key Features & Benefits

1. Polymer fortified—no latex admix needed.
2. Build mortar beds up to 2 in (50 mm) thick without shrinkage.
3. Excellent freeze–thaw durability for exterior decks. Moreover, the mix resists de-icing salts.
4. Ideal scratch-and-brown coat for vertical walls.
5. Approved replacement for 226 Thick Bed Mortar with 3701 Mortar Admix, simplifying job-site logistics.

Technical Data & Coverage

Each 60 lb (27.2 kg) bag yields about 0.5 ft³ at 1 in thickness. For quick estimating, consult our mortar coverage chart.

Installation Snapshot

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Add LATICRETE 3701 Fortified Mortar Bed to your cart today. Additionally, bundle it with 254 Platinum Thinset to earn extra Tile Pro Rewards points.