High Temperature “Cooking” → Rainstorm Scouring → Typhoon Pulling! How To Deal with Weather Resistant Adhesive in Guangdong's "three Consecutive Weather Attacks" in July And August?

The recent weather in Guangdong can be described as "magical realism" - in the morning, it is still in "barbecue mode" at 37 ℃, and the ground is so hot that it can fry eggs; In the afternoon, dark clouds suddenly pressed on the city, and rainstorm poured down, making the street "Venice of Water".

This random switching of "high temperature+rainstorm" is undoubtedly an "extreme survival challenge" for household sealing materials. Especially for weather resistant adhesives, if they cannot withstand thermal expansion and contraction, as well as moisture erosion, it can result in mild air and water leakage from doors and windows, and severe cases such as glass cracking and wall mold.

Today, let's talk about how to choose and use weather resistant adhesive correctly in extreme weather conditions like Guangdong, to make home sealing as stable as a rock!

PART-01 'Two Heavens' | The' Life and Death Challenge 'of Weathering Adhesive

1. High temperature exposure: Colloids are "hot to the point of expansion" and adhesive failure. The sunlight in July and August can be called a "natural oven", and outdoor temperatures easily exceed 40 ℃. Metal, glass and other substrates expand due to heat, and ordinary weather resistant adhesives are prone to tearing due to insufficient elasticity, resulting in gaps in door and window seals. Experiments have shown that the expansion rate of ordinary adhesive can reach 15% within 24 hours at 50 ℃, and the adhesive strength decreases by 40%.

2. rainstorm humidity: Colloid "absorbs water and softens". After a cluster of mold spots, the air humidity often reaches more than 90%. The inferior glue expands and softens after absorbing water, and is separated from the substrate. Especially in wet areas such as toilets and kitchens, the mold coverage rate can reach 50% within a week. Mold not only damages appearance, but also releases spores, causing respiratory diseases.

PART-02 The 'Stable Word Technique' | Three Core Technologies Breakthrough the Situation

1. Elastic repair: High temperature non cracking, low temperature non brittle high-quality weather resistant adhesive adopts organic silicon polymer material, whose molecular chain structure is flexible like a "spring" and can freely expand and contract within the range of -50 ℃ to 150 ℃. Even if the substrate expands and contracts due to temperature differences, the colloid can fill the gaps through elastic deformation to avoid cracking.

2. Hydrophobic and mould proof: rainstorm washes away, mould "zero survival" forms a dense hydrophobic layer on the surface of high-quality glue by adding nano hydrophobic factors, and water drops cannot penetrate, blocking mould breeding from the source. Meanwhile, the built-in silver ion antibacterial agent can inhibit bacterial growth for a long time.

3. Environmentally friendly curing: "Zero volatilization" at high temperatures, protecting respiratory health. Poor indoor ventilation in July and August can easily lead to excessive VOC (volatile organic compounds) in inferior adhesives. High quality adhesive hardly releases harmful substances during the curing process, and there is no pungent odor after construction. The detector shows a formaldehyde concentration of only 0.03mg/m ³, far below the national standard.

PART-03 The 'Golden Rule' | Details determine durability

1. Substrate treatment: Cleanliness is the "lifeline" of bonding. Before construction, it is necessary to wipe the bonding surface with alcohol or specialized cleaning agents to remove oil stains, dust, and rust. If the substrate is damp, it needs to be wiped dry with a dry cloth or blown dry at low temperature with a hair dryer, otherwise the colloid is prone to mold due to residual moisture. Avoid construction in rainy weather or environments with humidity greater than 80%, otherwise the gel will solidify slowly and hollowing may occur.

2. Glue application technique: Apply evenly and fully, reject "bubble traps", use a glue gun to evenly apply glue at a 45 ° angle along the gap, and control the speed evenly. After gluing, use a scraper or fingers (wearing gloves) to smooth the surface, exhaust the air, and prevent cracking caused by bubbles in the later stage.

It is recommended to choose early morning or evening for construction in July and August to avoid the high temperature at noon causing the colloid to solidify too quickly and affecting the adhesive strength.

3. Curing and maintenance: The neutral silicone adhesive needs 24-72 hours to fully cure (the higher the temperature, the faster the curing). Avoid touching or moving the adhesive within 24 hours after construction, and do not expose it to direct sunlight or rain within 48 hours.

PART-04 Stability comes first "| Choosing the right adhesive is the" true way to save money ".

The extreme weather in July and August is the" ultimate stress test "for weather resistant adhesives. Choosing the right adhesive that can withstand the "alternation of ice and fire" and maintain "safety and stability" can not only avoid rework and repair in the later stage, but also add an "invisible lock" to home safety.

Remember this 9 word mnemonic: "Elastic anti cracking, hydrophobic anti mold, environmentally friendly curing", so that every bond can withstand the test of time and climate!