Rectorseal 30-Oz. Cartridge Metacaulk 1200 Caulk Grade Firestop Mastic

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Metacaulk 1200 is a single-component, general-use fire-rated sealant for construction joints. Cures to elastomeric membrane seal suitable for dynamic movement areas. Prevents spread of flames/smoke/hot gas/water through joint openings.


Paintable, VOC compliant, Excellent Freeze-thaw and Water based


No dilution or mixing is required for use.


Sprayable, brushable trowelable caulkable & pourable– mastic grade for efficient installation on long joint runs, self-leveling for horizontal use when fast installation is needed & caulk grade for easy-to-apply non-sag sealant using caulk gun/trowel


Is a single-component, general-purpose, fire-rated sealant for construction joints

Caulk Grade is a non-sag sealant that is easy to apply

It is a water-based sealant designed for spray application

It cures to an elastomeric seal suitable for use where dynamic movement is expected






    • Brand RectorSeal
    • Mfg Part # 3# 92 - Metacaulk 1200 Tube
    • Color Red
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Payment Policy

You buy, you pay, I ship no later than the following business day. This is because our local post office is only open until Noon, so if I receive payment prior to around 10:00 AM CT, then I will print and ship that same day as I go to the post office around 10:00 AM each morning. Payment may be through PayPal and Credit Cards can be accepted through PayPal as well. I will also accept USPS Money Orders, or payment upon pickup should someone like to contact me for doing so.

Shipping Policy

I ship no later than the following business day. This is because our local post office is only open until Noon, so if I receive payment prior to around 10:00 AM CT, then I will print and ship that same day as I go to the post office around 10:00 AM each morning. I ship the most economical, yet speediest way possible. If it is affordable I will use Priority Mail with the USPS, if larger or heavy, then will be with FedEx or UPS ground. Books will go via Media Mail unless another choice is paid for.
All items listed and sold will have the shipping paid for by me if you are within the 48 states. Territories and those in Hawaii and Alaska just send me a message, as I will probably be able to ship for Free to you as well since I use the USPS for most everything. International Buyers need to contact me for ratess though.

Return/Exchange Policy

Anything not as described or any new item which is malfunctioning and not know at the time listing was created. Outside of that I will accept a return at the buyer's responsibility for shipping item back to me and I will deduct the shipping from the refund as well for such circumstances.

Other Policies

Browse, ask questions, and enjoy looking at what we have to offer and THANK YOU for visiting and share us with others. Retired now, most items are the only one which I have, so multiples are not available. All items are in my sole possession and are items which Amazon will not allow a new seller into or they do not recognize the UPC, so their loss is your gain as I am reflecting the better prices to list here now. All items listed and sold will have the shipping paid for by me if you are within the 48 states. Territories and those in Hawaii and Alaska just send me a message, as I will probably be able to ship for Free to you as well since I use the USPS for most everything. International Buyers need to contact me for rates though.

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