Home        Products       Services       Locate a Distributor     Repair Products & Info     Custom Colors

SEVERE SPALLING AT JOINT
(For Defects 1 1/2" or wider)
(For Spalls Less than 1 1/2" wide, click here)

Major Spall (1.5" Plus)	Prepared Spall
Armor Hard Repair               MM-80 Repair                   Bad Repair

REPAIR PROCEDURES
1. Make 3/4" deep cuts just beyond spalls and remove concrete as shown.

Fill joint space below newly cut slot with sand. Mix Armor-Hard liquid and brush-apply a prime coat to concrete. Modify remaining Armor-Hard with silica sand or use Armor-Hard Kit  to create a mortar.

2. Fill slot with Armor-Hard mortar. Insert M/M's EXPANSTRIP as shown, 
making sure the bottom of the strip extends lower than the epoxy. Tool epoxy flush with surface.

Allow epoxy to fully harden. Snap off exposed strip. Grind or sand surface flush if necessary.

OPTION: MM-80 or SPAL-PRO 2000 may be used instead of Armor-Hard.  When using either of these products it is not necessary to use a divider strip unless excessive movement is expected.  Please see "Typical Spalling" for basic repair procedures.