Sealant plays the role of waterproof sealing, bonding, mildew proof and beautifying the gap in the home decoration, such as the sealing and mildew proof of the toilet sink, the waterproof sealing between the window frame and the wall, and the gap beautification of the skirting line and the wall, etc. as the auxiliary material in the home decoration, the amount and cost of sealant seems to be insignificant, and people often ignore this material in the process of home decoration, so that the master can do it at will Purchase.
I don't know about you
Have you paid attention to these details?
Maybe one day you suddenly find a little mould on the bathroom counter
The window began to leak
What follows is constant repair and worry
Will realize the importance of a high quality sealant product
There are many kinds of sealant
They all look the same
In fact, there is a lot of knowledge in it
Today's editor will teach you
How to choose a high quality sealant
High quality sealant vs low quality sealant
raw material
component
Raw material price
Yuan /kg
Proportion
Characteristic
Liquid material
Silicone rubber, silicone oil, crosslinking agent and auxiliary agent
20-50
20%-50%
Good elasticity, aging resistance, good elasticity after 5-10 years of use
Powder material
Calcium carbonate, etc.
0.5-2.5
50%-80%
Easy to aging and cracking
? as can be seen from the above table:
Features of high quality sealant: high quality raw materials are selected, with high liquid content (40-50%), good elasticity, good aging resistance, and good elasticity after 5-10 years of use.
Features of poor quality sealant: high filling powder (70-80%), liquid material is recycled material, poor elasticity, easy to aging, cracking and debonding.
The silicone sealant sold on the market generally includes liquid materials accounting for 20% ~ 50% and powder materials accounting for 50% ~ 80%. The products of different manufacturers are quite different.
The cost of liquid materials is dozens of times higher than that of powder materials, accounting for more than 80% of the total cost. Some low-cost and low-quality sealants fill a large number of powder materials and low-quality and recycled raw materials. Some even fill powder content to more than 80%, which greatly reduces the cost. However, at the same time, it makes the sealant hard and brittle after solidification, and becomes a low-quality product. After a period of use, there will be debonding and cracking Elephant.
But this kind of behavior, that is, exchanging price for quantity, shoddy or even changing formula to reduce product quality, is actually lifting a stone to smash one's own foot, seizing the market for a while but losing the future!
When other enterprises constantly touch the bottom line of the industry, Fengjing group adheres to the bottom line of formula and does not reduce the production cost by adjusting the formula and using inferior recycled materials.
In addition, compared with the semi-automatic production equipment of some small manufacturers, Fengjing group has a full-automatic twin-screw production line. Raw materials can be automatically and continuously input into the main equipment screw machine through the metering system, and the materials can be dispersed, ground and reacted in the twin-screw machine.
The products are continuously output from the twin-screw equipment and packaged into products. They are truly of high quality, high efficiency, low loss, fully automatic and intelligent production, ensuring the stability of the products.
Five standards of high quality sealant
? high gloss
The glossiness of different quality glue is different after it is printed. The color of high-quality glue has strong glossiness after curing, while some of the poor glue has no glossiness once it is printed, and others lose glossiness after curing for one or two months.
The higher the glossiness of the surface, the more delicate and smooth the glue is, and the better the quality is.
No particles?
High quality sealant is a chemical synthetic material that has been fully and evenly stirred, with fine and uniform texture, smooth, flat and glossy after curing;
There are some visible particles and sundries in the poor quality sealant, and the surface of the adhesive strip after sizing and curing is not smooth and smooth compared with that of the good quality sealant.
The silicone sealant without glossiness and particles often uses recycled materials as raw materials, which tend to turn yellow seriously and have poor weather resistance and UV resistance.
No bubbles?
The main component of high quality sealant is silicone, and the amount of other added materials is very little, so it has good stability.
But the poor silicone sealant is not 100% silicone glue, the additives in the silica gel and PE soft glue in the rubber bottle may have chemical reaction, causing the "swelling" phenomenon of the rubber bottle, making the air remaining in the space infiltrate into the glue to produce a gap, which directly shows that the colloid is uneven and there are bubbles!
? high tensile strength
The elongation of the cured silicone strip can reach two to three times of the original value and is not easy to break. After releasing the hand, it can basically return to the original length.
However, the low quality silicone rubber strip not only does not have good elongation, but also directly breaks when it reaches a certain tensile strength and lacks elasticity!
? resistance to shrinkage cracking
A series of common problems in life, such as cracking, shrinkage and degumming of sealant, are actually based on the anti shrinkage of silicone adhesive. The silica gel with good quality has stable size, anti shrinkage and good displacement resistance.
The reason for bubble, low tensile strength and poor shrinkage resistance is that the manufacturer added a lot of white oil in the raw material! In order to reduce the cost of production, and then at a low price for vicious competition.
Compared with manufacturers using recycled materials and white oil, Fengjing group is more inclined to win the trust of consumers with quality, and we also use services to add value to our products! To produce colorful silicone rubber products based on customer demand, to meet the diversified market demand.
As Fengjing people, we always believe that only by adhering to our brand value, our service value and the bottom line of quality can we gain social respect and return.
Karebon provides
One stop shopping experience of fine home decoration materials
This issue concerns: how to choose sealant, have you learned?
Past wonderful direct entrance
"BMW presents heroes" and the cause is flying!
Shandong jialebang has become a great power. Take advantage of it!
Jialebang appears in Guangzhou Construction Expo!
? jialebang online shopping mall
Tell me if you like