VITCAS Mastic Black Fire Retardant Kit - Excellent adhesion - Repair - Fireplaces - Stoves - Boilers - Excellent sealing - 500g

Great value, very DIY friendly product, thought I was gonna have to buy new stone inserts for my log burner. I looked on here and found this product. The baffle had company broken into two pieces, I used this to ‘glue’ them back together, and also sort out lots of cracks that had developed inside the log burner. It’s gone off rock hard, I’ve had several fires since using this and no issues, time will tell I guess. I appreciate it doesn’t look as aesthetically pleasing as buying new would have, however it’s saved me money and I’m happy with that, I would recommend 🔥🔥🔥

Best product for stove flue and chimney joints High temperature resistant and lasts the longest I’ve tried

Used this for sealing around a stove and it applied easily—good texture, strong adhesion, and sets rock hard as advertised. Initially looked great with a deep black finish, but after a few weeks it started to fade and take on a whitish tone, which was disappointing. Functionally it’s fine, but if you’re expecting the colour to hold up over time, it might fall short. Decent product overall, just not quite as visually durable as hoped.

I was amazed how malleable and easily applied this cement is sealing the joint between the chimney blanking plate and the flue. We were beginning to see insulation beads escaping after the original cement dropped. Gloves and pointing trowels - small to get behind the flue and large to force the mix into more accessible positions.. I think, on reflection, I might have preferred the 'gun' delivery so more could be forced upwards. I will wait and see. If this repair fails, it will be my fault, not the product and I will happily try again but use the gun.

Perfect product 100%

Very good value for money, repaired my stove bricks well and easy to use

Used to repair the collar above my stove which had cracked. Easy to apply - I would recommend using gloves if you want to touch with hands as it makes them very black indeed. Sprayed some water on the area before applying and used small pointing trowel to neaten on top. Lasted over the winter and then cracked a little which made no difference to the workings but looked a bit tatty so I decided on another repair. Unfortunately the tub had gone rock solid which was a supervise as I had put the top on properly and stored in a sealed plastic box in my garage which is warm all year round. No big deal - purchased another but just seems a waste after hardly using much at all.

Excellent! Re sealed round the top and bottom of our log burner flue. Easy to use. After reading reviews, I agree using gloves is a must, and having a damp cloth to hand. Making it very slightly damp makes for a smoother finish. Has made a perfect seal first time, and dried very quickly. Mine is still black, but presume it will fade over time. Very pleased.

Bon produit , j’ai reparer mon brasero

non è un collante come indicato ma un mastice sigillante per le fughe e le giunzioni delle stufe e dei relativi tubi per scarico fumi. Per cui a fine stagione quando si smonta tutto per la pulizia si rimuove facilmente, a differenza del silicone che ormai tutti ti vogliono rifilare. Altro vantaggio è che quello che resta si conserva tranquillamente per il prossimo anno con l'accortezza di aggiungerci un filo di acqua. Stessa aggiunta se nella lavorazione risultasse troppo pastoso.

Çok iyi kullanımı kolay..

De momento perfecto y fácil aplicación. Espero sea duradero. Lo he utilizado en una caldera de carbón antigua y de momento muy bien

J'ai employé ce mastic pour faire l'étanchéité entre une plaque horizontale en acier qui cachait un trou et les briques réfractaires. Facile à appliquer bien que le mastic soit très épais. Il faut faire attention au volume nécessaire : 500 grammes mais en fait un volume utile de 220 cm3, dans mon cas, si j'avais connu le volume livré, j'aurais mesuré l'espace à remplir et je n'aurais pas eu à refaire une commande et dans la foulée, j'aurais pris 1 kg pour avoir un meilleur prix.