When to remove sealant?
Sealant is not last permanently. It will age more quickly if exposed to the elements frequently. The surface may not have been properly prepared or the incorrect sealant may have been used if the sealant wasn’t applied by a skilled craftsperson. This can cause premature fading and wear.
Sealant does not form a tight seal when peeled. The opening left by worn sealant can let in cold air, water, and insects. For instance, a window with sealant around it could result in mold growth and wooden frame dry rot. Sealant’s lifespan can be increased and peeling or cracking prevented by thoroughly cleaning the surface and applying new sealant with a tight seal.
Growing mildew or mold on sealant is a sign that it no longer offers sufficient protection against these organic substances. Numerous issues are brought on by mold, including allergies and structural damage.
In an indoor environment, correctly applied sealant should typically last five years. However, there are additional indications that you should replace the sealant besides of aging. Even if your sealant does not appear to be showing signs of wear, tension and hidden damage could eventually reduce its efficiency. As a result, plan to repair the sealant at least every five years.
What are the common type of sealants available in the market?
- Silicone sealant – Silicone can use to seal with glass, metal, ceramic, and porcelain since it is strong and flexible. It is perfect for outdoor applications because of how well it can react to ultraviolet (UV) radiation, mold, and mildew. Unlike other sealants, silicone does not require heated temperatures for curing. The sealant is still supple and malleable after application.
Unfortunately, silicone that has dried will not stick to wood. Additionally, you are unable to paint over it since paint will not stick to the sealant. Furthermore, the remaining sealant will simply rip away if the silicone is physically harmed in a way that tears it.
Despite its drawbacks, silicone is still the material of choice for sealing non-porous surfaces in harsh conditions.
- Water-based sealant – Latex, acrylic, and vinyl are the types of the water-based sealants. The majority of building materials, including wood and nonporous surfaces, are adhered to by water-based sealant. These sealants are some of the simplest to apply because, as long as the material hasn’t dried, all that’s needed to clean them up is water. Additionally, you can paint the surface to match the materials around it when it has dried. Acrylic is resistant to UV rays and, if necessary, can be used in external applications.
The drawback of the sealant is that the application method is difficult. Finally, latex is only appropriate for interior applications since, unlike acrylic, it has a propensity to shrink and permit water penetration.
- Polyurethane sealant – Polyurethane sealants are a good choice for durable, long-lasting sealants. Because of its longevity and ability to attach to a variety of materials, contractors frequently use this sealant. They create a paintable surface that resist abrasion and shearing damage.
Despite its toughness, polyurethane needs to be handled carefully to prevent exposure to its toxic, odorous vapors.
- Butyl sealant – This sealant can apply to many types of surfaces. It works well on rain gutters, roof flashing, or foundations due to its great water resistance.
Unfortunately, the stringy nature of butyl sealants makes application quite challenging. Additionally, butyl sealants are not as resistant to abrasion as polyurethane versions.
- Synthetic rubber sealant – This sealant has similar characteristics as water-based and silicone sealants. Synthetic rubber sealants attach to the majority of construction materials, just like water-based sealants. Like silicone sealants, application conditions might be hot and dry or cold and moist. After curing, synthetic rubber sealants can stretch well. Synthetic rubber sealants create flexibility that make them ideal for joints that move a lot.
These sealants’ flammability and high volatile organic compound (VOC) content are major drawbacks. Synthetic rubber sealants are unsafe for use in interior applications due to their high VOC content.
How to remove the silicone sealants?
- Soften the sealant – Use a commercial sealant remover or a homemade solution to first soften the sealant. It will take several hours to soften the sealant sufficiently for removal, regardless of the technique you select.
- Remove the sealant – Peel off the sealant by using a putty knife, utility knife, or sealant removal tool.
- Remove any residue – By reheating the sealant with a heat gun or hairdryer, remove any leftover residue. To soften the remaining sealant in heat-sensitive places, wet a towel in rubbing alcohol and drape it over the leftovers for a day or two.
Don’t speed this part of the sealant removal, just like you wouldn’t rush the first softening stage. Any residue you do leave behind will prevent the new sealant from adhering properly.
- Clean the surface – The surface must still be thoroughly cleaned after every last piece of sealant has been removed in order to get it ready for new sealant. It’s possible that old sealant allowed moisture to pass through, allowing mould or mildew to form underneath. To get rid of the organisms and freshen the area, scrub off the mildew with diluted bleach.
The benefits of engaging a professional team to remove and replace the sealant
While you can prepare the surface and remove old sealant on your own, a professional should hire to install for the new sealant. Applying sealant is a skill in handling this material. The process of choosing the right kind of sealant for a given application is likewise a science. Therefore, a skilled craftsperson should apply sealant to your commercial property if you want the best result.
For instance, choosing the right sealant for a commercial facility depends on a number of criteria. In certain building settings, flexible sealant that moves with the joint is required to prevent cracks and shield the structure from shearing pressures. Exterior joint seals must be heat- and moisture-resistant. In a lab or other medical facility with strict sterility requirements, cleanliness and the prevention of mold or mildew growth may work well.
Professional artisans are aware of which sealant has the qualities needed to satisfy the requirements for a business location. You will receive advice for long-term performance and repairs for sealant failure points when working with a specialist.
We, Structural Repairs (M) Sdn Bhd have been offering sealant services for the preservation and repair of commercial buildings for more than 30 years. You can read reviews from companies we’ve helped in the past on every page of our website. Their statements support our aim to prioritize safety, use a qualified team for every task, surpass all standards, be adaptable when necessary, and develop strong relationships with our clients.
Our team members also apply the modern sealing methods with historic building designs, we use the recent techniques to safeguard these buildings without compromising their historic integrity. Our services also apply to modern buildings.
Regardless of the age of your building, contact us if you require expert in sealant and sealing services.
To find out more about the ideal sealant options for your requirements, get in touch with Structural Repairs (M) Sdn Bhd.
Kindly visit to our website at https://structuralrepairs.com.my/ or contact us at Tel: +603-91731728/29 Whatsapp: +60 12-334 9113