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Gleihow New Materials Co., Ltd.

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Unsaturated polyester putty (atomic ash) FAQ

1. What is the best dosage of curing agent?
Answer: Curing agent should generally be in 1% ~ 4%, the best dosage is 2%. Mixing should be uniform, so that the mixture color is uniform, uneven will make the curing agent more place adhesion decline, less place curing is not sufficient.


2, if the viscosity of atomic ash feels very thick, can add solvent, add what solvent is good?
Answer: If the user wants to dilute the consistency of the atomic ash, a little chemical raw material styrene can be added appropriately, but the amount should not be too much, and to stir evenly, otherwise it will lead to slow curing of the atomic ash. In particular, it is not allowed to add sina water, xylene, toluene, gasoline, alcohol and other solvents to the ash products, but not to add white latex, water and other substances, otherwise it will lead to the ash is not solidified.


3. What are the reasons for the non-curing of atomic ash?
(1) curing agent failure, curing agent shelf life is one year at room temperature, if the user is stored at a relatively high temperature, the shelf life will be significantly shortened, so first look at whether the curing agent expired (see the spray code), and then look at whether the curing agent has a pungent smell, if the smell is very big, generally failure, finally can use the recent curing agent and the original atomic ash experiment, To identify the good or bad curing agent.
(2) The user adds some solvents, general solvents have the effect of polymerization to a certain extent, the user in order to dilute the product, to facilitate the use of thick coating may not find problems, but the thin coating may not cure, in addition to the solvent will reduce adhesion, may produce foaming phenomenon.
(3) When the construction humidity is too large or the coated surface humidity is too large, when the coating surface is in contact with a large amount of water, the water has obvious anti-polymerization effect, so that the curing speed is slowed down, the cross-linking agent volatilization failure in a long time without curing, so that the product can not be cured (no matter how long the time can not be cured), or the phenomenon of low strength after curing. Especially in the case of thin coating, the coated surface humidity is too large, will also produce the same phenomenon, so the coating is too thin should not be constructed in rainy days, the coated material (substrate) surface must be dry, in order to ensure the quality.
If the construction must be carried out when the humidity is high, the solution is to use a hair dryer to heat the coated surface and remove the moisture.


4. What causes bubbles to appear on the surface of coating after curing of atomic ash?
There are several reasons why the surface of ash bubbles after curing:
(1) The amount of curing agent is too large, and the reaction is too fast, resulting in bubbles.
(2) The ash may be mixed with other solvents, resulting in bubbles during the reaction.


5. What are the reasons for atomic ash falling off after curing?
(1) The coated surface is not treated well, and the surface has low strength attachments, dust, oil, etc., which can be determined by looking at the shedding surface.
(2) atomic ash is coated on some hard to stick metal, such as galvanized sheet, tin plate and so on.
(3) After coating, the atomic ash may fall off under high temperature and long time baking. The atomic ash of Brother Good brand will not fall off for an hour at a temperature of less than 140℃.
(4) The baking process within 5h after the coating of atomic ash, due to insufficient curing, strength and adhesion did not reach the highest, so it is easy to fall off, it is recommended to bake the process after curing 24h.
(5) In the coating process, the amount of curing agent is too large, the adhesion is not good, may fall off.


6. What measures should be taken to accelerate the curing speed of atomic ash?
External lamps, incandescent lamps or other heating tools can be used to assist heating, but local overheating should be avoided to avoid reducing the adhesion of atomic ash. In addition, auxiliary heating can not be rushed, should follow a certain temperature curve.


7. What should we pay attention to when using atomic ash on wood surface?
(1) Wood drying
New wood contains a lot of water, without treatment may occur putty layer shedding, cracking, foaming and other phenomena, before the construction to be stored in a well-ventilated place to dry naturally or into the drying room with low temperature drying, general moisture control in 8% ~ 12%.
(2) Surface planing and grinding
Plane it, either mechanically or by hand, and then start sanding. First of all, the surface of two pieces of sandpaper friction with each other, in order to remove the occasional coarse sand, and then for grinding, grinding finished with a rag wipe wood chips and other impurities.
(3) Remove the lignin
Due to different tree species, some wood often adhere to or secrete lignin, wood pulp and other substances, in the case of slightly higher temperature, this secretion and will overflow, so that the coating surface spots, floating color and other shortcomings. When removing, first remove the precipitates with a shovel knife, and then wipe with organic solvent to dissolve the lignin, and then wipe clean with a dry cloth.


8. A customer is making furniture, using atomic ash to hit the R corner of the wooden table. He found that it was very soft and could be pulled down with his hand.
Answer: After asking the user to understand, because of the large amount of stirring each time, in order to prolong the application period, the operator deliberately added less curing agent. In this case, when the weather is dry and the temperature is high, the feeling has little influence on the hardness of the later stage (the actual effect is also there, but it is not obvious), but if the humidity is high in the rainy season (the user feedback time is August), it will cause the curing is particularly slow or incomplete curing, late hardness is low, poor adhesion. It is suggested that the user should follow the product instruction to operate, otherwise there will be quality problems.


9. Incomplete curing occurs when the user uses 306 atomic ash.
A: After inquiry, the user added organic solvent to the ash in order to change the consistency of the ash, which resulted in incomplete curing. No solvents, water and other liquids can be added to the atomic ash.


10, the user uses atomic ash, hit on the wooden stairs, 2 days still dry.
A: Upon inquiry, the coating is very thin, has been transparent, there is not enough to participate in the reaction curing material, so do not. Normally, it should be thickened, cured, and then polished to the desired thickness.


11, the user asked: the atomic ash on the surface of the furniture, because the furniture area is too large, too fast curing of atomic ash, did not use curing agent, directly coated on the main agent after why 2 days?
A: Atomic ash is a two-component reactive product, which can be cured only when the main agent and curing agent are fully mixed in a certain ratio to undergo REDOX reaction.


12, a user with atomic ash, hit on the guardrail bubbling phenomenon, what is the reason?
A: It is understood that when the user uses atomic ash, the spray paint should be baked at a high temperature of 200 to 300℃. The product should not be baked at more than 120℃. It is recommended that after curing the ash, it should be cured at 80℃ to make it more completely and thoroughly cured, and then it should be baked at high temperature.


13, the user feedback, some places after the putty dry, some places do not do, think that the quality of the ash is wrong.
Answer: To the user to understand the color of the dry place yellow. The problem is caused by excessive addition of curing agent or uneven mixing.