Since the beginning of summer, many regions in North China, East China, South China, and Central China have successively issued orange/red alerts for high temperatures. Surface temperatures in many areas have exceeded 40 ℃, and outdoor sunrooms are facing the test of scorching sun. Glass deformation, adhesive cracking, and water leakage on rainy days have become common troubles for thousands of homeowners.
To ensure a stable summer in a sunroom, the key is to choose the right sealant. Genesis C-668 multi-purpose weather resistant sealant is specially developed for extreme high temperature environments, providing comprehensive solutions to the pain points of high-temperature sunroom sealing from raw materials to performance!
01
High temperature strikes | Increased pressure on outdoor building components
This summer, high temperatures have covered over 20 provinces and cities in China, with temperatures in Henan, Shandong, Jiangsu, Zhejiang, Guangdong, and other areas exceeding 38 ℃ for several consecutive days. The measured temperatures in outdoor environments and on rooftops have soared to over 55 ℃.
Continuous extreme heat brings chain life troubles:
✅ Accelerated aging of outdoor building materials:
Aluminum alloy profiles and tempered glass experience a significant increase in thermal expansion due to the scorching sun, leading to greater differences in thermal expansion and contraction coefficients among different materials and repeated stretching and deformation of joints;
✅ The soaring cost of living at home:
The sealed greenhouse effect of a sunroom is significant, with indoor temperatures easily exceeding 50 ℃. Green plants wither under direct sunlight, and furniture ages and deforms due to heat;
✅ High maintenance costs in the later stage:
High temperature accelerates the aging and failure of ordinary sealant, resulting in frequent water leakage and seepage. The labor and material costs for repeated glue repair and glass replacement remain high, and many homeowners have to spend money to repair their sunrooms every summer.
02
High temperature exposure | Four deadly problems in sunrooms
The sunroom is made up of a large area of tempered glass and aluminum profiles, facing UV rays and high temperatures without obstruction. The sealing system is the first to be damaged, and 90% of water leakage faults are caused by the sealant:
1. High temperature softening, delamination and seam opening:
Low cost and universal glass adhesive on the market has poor resistance to high temperatures. After exposure to sunlight, the adhesive quickly softens, shrinks and hardens, pulverizes and fractures, and gaps appear between the glass and the profile.
2. Sudden changes in temperature and heat, cracking of adhesive joints:
During the day, it expands due to high temperatures and sun exposure, and contracts due to sudden cooling in the evening. Glass and aluminum materials deform and become misaligned, and poor quality adhesive has insufficient elasticity to follow the deformation. The joints frequently crack, and rainwater seeps into the room through the gaps during rainy days, turning the sunroom into a "water curtain hole" in seconds.
3. UV accelerated aging:
Long term exposure to strong ultraviolet radiation can cause ordinary sealant to turn yellow and brittle after 1-3 years. In the high temperature and humidity environment of the south, the sealant joints turn black and moldy, which breeds odors and pollutes window frames and walls.
03
Genesis C-668 | Exclusive protection for high-temperature sunrooms
Genesis has accumulated years of experience in sealant research and development technology. C-668 multi-purpose weather resistant sealant focuses on wide temperature range weather resistance, high elasticity and deformation resistance, and full substrate adaptation, targeting the pain points of high-temperature sunroom sealing and providing long-term protection for sunrooms
✅ Ultra wide temperature resistance range:
The product is resistant to extreme temperatures and does not soften, flow, shrink or harden under high temperature exposure on sunny roofs. Its performance is stable when there is a drastic temperature difference between day and night, avoiding the problem of high temperature delamination from the root.
✅ High elasticity and displacement resistance:
Excellent elastic recovery performance, can freely expand and contract with the thermal expansion and contraction of glass and aluminum profiles, offsetting the deformation and tension of different materials, and the adhesive joint will not crack for a long time.
✅ UV resistant and aging resistant:
Adding anti UV and anti ozone formulas, facing strong UV radiation in summer, long-term outdoor use is not easy to yellow, powder, or mold. It is also resistant to moisture and water bubbles in high temperature and rainy areas in the south, with clean, neat, and durable glue joints.
✅ Multi material universal bonding:
Suitable for aluminum veneer exterior walls, high-end doors and windows, one-stop installation of new houses and repair of old houses, truly versatile.
✅ Environmentally friendly low odor:
Free of formaldehyde, low VOC, no pungent odor after curing, no harmful gases will be released in a sealed high-temperature environment in a sunroom, and drinking tea and growing flowers at home is healthier.
04
Glue application technique | Double the sealing effect of C-668 with good use
Summer high-temperature construction is different from normal temperature. To avoid bubbles, delamination, and rework, four practical points should be taken into account:
✅ Pre treatment of construction base surface: Thoroughly remove aged old glue, dust, and oil stains, wipe the contact surface between glass and aluminum profiles with alcohol, and ensure that the base surface is dry, free of water stains and floating dust. Glue application is strictly prohibited in humid environments;
✅ When the gap width is greater than 8mm, polyethylene foam rod shall be filled in advance, and the width and depth of the glue gap shall be controlled at 1:1, so as to save glue and improve the sealing firmness.
✅ Off peak construction, avoid exposure to sunlight: In summer, the substrate is exposed to high temperatures of over 60 ℃ at noon, which can cause colloidal bubbles and air sticking when applying glue at high temperatures. It is recommended to carry out construction in the early morning and evening, and temporary shading and cooling measures should be taken when working under scorching sun.
✅ Standardized gluing technique: The glue gun and the gap are pushed at a constant speed of 45 °, and the glue is fully filled in the gap, slightly 1-2mm higher than the base surface, and can be continuously glued at once without interruption;
Within 10 minutes after finishing, use a scraper to level the adhesive surface to avoid premature peeling and inability to repair.
✅ Precautions for curing and maintenance: C-668 moisture curing. Avoid direct sunlight, rain, and contact within 24 hours after bonding. Prolong the curing and standing time appropriately in high temperature and high humidity environments. After complete curing, put it back into use.
05
Conclusion | Weather resistance can withstand the test of scorching heat
High temperatures occur every year, and water leaks are a concern every year. Instead of repeatedly spending money to repair sunrooms, it is better to choose high-performance weather resistant sealant from the source. Genesis C-668 multi-purpose weather resistant sealant, with its hardcore weather resistance, can withstand the test of scorching heat. New homes can be installed in one step, while old homes can be renovated with peace of mind and durability. Let your sunroom bid farewell to sauna stuffiness and rainy days with water leakage, and be comfortable and livable all year round!
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