FIRESTOP SILICONE WHITE ASMACO

It is formulated to bond to common construction substrates like concrete, brick, gypsum board, plaster, masonry, and many metals. Typical joint widths range from small to mid‑sized gaps (the exact range depends on the joint design and testing). For best results, ensure the surface is clean, dry, and free of dust, oil, and release agents before application.

The product is designed for firestop applications and provides fire‑stopping performance as tested for typical joint configurations. The exact fire rating (for example, the EI or fire‑resistance classification) depends on joint size, substrate, and testing performed. Always consult the product datasheet and your project requirements to confirm the rating for your joint configuration.

Key specs: color is white; packaging typically a 310 ml cartridge; cure type is moisture‑cured silicone with skin formation in about 15–60 minutes and full cure within 24–48 hours depending on humidity and temperature; workable temperature range and service temperature are suitable for typical interior to some exterior conditions; movement capability and adhesion depend on joint design and substrates.

Prep the joint by cleaning and drying the area. Cut the nozzle to the desired bead size and load the cartridge into a caulking gun. Apply a continuous, even bead along the joint, then tool the sealant with a damp finger or a smooth tool to ensure good contact with all joint surfaces. Allow to cure undisturbed per the stated cure times and protect from moisture or dust during the initial curing period.

Uncured sealant can be cleaned with appropriate solvents (as recommended by the product datasheet) and tooling tools. Once cured, sealants are generally difficult to remove and may require mechanical removal or special solvents. Always follow safety guidelines and wear PPE when handling solvents.

Store in a cool, dry place away from direct sunlight and heat sources. Keep containers tightly closed when not in use. Unopened cartridges typically have a shelf life of several months to a year depending on the product and storage conditions; always check the product label for the exact expiry date.

Use in a well‑ventilated area. Wear appropriate PPE such as gloves and eye protection. Avoid skin and eye contact; if contact occurs, rinse thoroughly with water. Keep away from open flames or ignition sources during application and curing. Do not ingest.

Typical applications include sealing joints around penetrations for pipes, cables, sprinkler and HVAC openings, and other fire‑stopped barriers in walls and floors where maintaining fire integrity is required. It’s suitable for interior joints and certain exterior scenarios as specified by the manufacturer and local building codes.

Both products share the same formulation and performance; the difference is usually cosmetic color. If you need a black finish for aesthetic reasons in visible joints, you can choose the Black variant. See the Black variant here: https://fepy.com/product/firestop-silicone-black-asmaco

The Grey variant typically uses the same base formulation and performance, with the color being the primary difference. If you prefer a grey finish for visibility or matching trim, consider the Grey variant: https://fepy.com/product/firestop-silicone-grey-asmaco

Silicone firestop sealants generally offer superior high‑temperature performance, longer elasticity, and better long‑term durability in joints subject to movement compared with acrylic sealants. If you need maximum fire resistance and flexibility, the silicone option is typically preferred. Compare with the acrylic alternative here: https://fepy.com/product/firestop-acrylic-sealant-asmaco

If you need to return the product, check the seller’s return terms on Fepy. Typically, returns are considered within a specified period with proof of purchase and original packaging, provided the product is unused or unopened. Contact customer service for the exact return window and conditions.