Repair fireplace mortar - if your fireplace has broken or crumbling bricks large gaps in the mortar or missing mortar have the fireplace inspected by a professional mason or fireplace contractor significant damage in a firebox can be a serious fire hazard and should not be repaired with refractory caulk p div class b factrow b twofr div class b vlist2col ul li div author bob formisano div li ul ul ul div div div li damaged or cracked fireplace mortar can be extremely dangerous and should be repaired immediately damage to the mortar holding bricks and masonry in place can allow cinders and sparks to find their way between the mortar and into flammable floorboards and walls damaged or cracked fireplace mortar can be extremely dangerous and should be repaired immediately damage to the mortar holding bricks and masonry in place can allow cinders and sparks to find their way between the mortar and into flammable floorboards.

and walls warnings using force to remove old mortar can dislodge the fireplace brick if bricks fall away from the fireplace easily as you remove the old mortar an extensive repair is required 1 how to repair deteriorating mortar in fireplace save image info resolution 600x450 size 23kb 2 mortar for fireplace smeared mortar brick fireplace p div class b factrow b twofr div class b vlist2col ul li div class b sritem b srtxtstarcolor 90 span class csrc sc rc1 role img aria label star rating 4 5 out of 5 data tag item customratingitem span class sw st span span class sw st span span class sw st span span class sw st span span class sw sth span span div class b sritemp 597 div div li ul ul li div author mia div li ul div div div li quikrete 174 fireplace mortar no 8620 21 is a silicate based refractory cement caulk for tuck pointing damaged fireplace mortar joints and repairing cracked.

or chipped firebricks in fireplaces quikrete 10 oz fireplace repair mortar is a silicate based refractory cement caulk for tuck pointing damaged fireplace mortar joints it withstands exceptionally high heat without product failure