Reactive curing mechanism 
    Examples of applying Acrysirup
    Floor coatings
    Civil engineering
    Acrysirup properties
    Performance test data 
    Cured Acrysirup resin physical properties
    Chemical resistance
    Acrysirup formulation and physical properties
    Proper handling and storage
    Precautions when applying
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Acrysirupfs reactive curing mechanism is a free radical polymerization chemical process. A hardener (polymerization initiator, BPO-50) is added to Acrysirup, generating free radicals. The resulting chain reaction and heat causes the resin to quickly harden. Special fillers do not affect the reaction.
@ Acrysirup is anaerobic
Paraffin wax is added to Acrysirup so that hardening will not be impeded by free radicals reacting to oxygen in the air. When Acrysirup with added hardener is applied to a surface, the paraffin wax rises to the top, forming a surface layer and preventing free radicals from being exposed to oxygen. This enhances the hardening reaction, causing a more rapid hardening. It is important to note that when performing this process indoors with poor ventilation, or when ground temperature is 35 or higher (during the summer with an atmospheric temperature of 25, ground temperature receiving direct sunlight can exceed 35), the wax layer will not form, impeding the hardening process.
A Surface sensitivity
Since methylmethacrylate (MMA) melting or swelling on a surface interferes with the hardening process, these effects need to be eliminated. For example, the use of paint (especially water-based paint), resin cement paste, spray-on materials, newly installed air-conditioners, adhesives, etc. should be avoided.
B Hardener amount
The appropriate amount of hardener to add is determined by surface temperature at the time of application. The required amount of hardener for primer corresponds to the amount that hardens in 20 to 30 minutes and for base coat and top coat corresponds to the amount that hardens in 30 to 50 minutes. The period of application is about half the hardening time. This time range is also ideal for optimizing physical properties: a larger amount will cause more rapid hardening, a smaller amount slower hardening. The resin will not harden at all with an excessively small amount.
C Accelerator
Applying to low temperature (5 to -30) surfaces requires using accelerator DR-AC-102 with the hardener. Hardening will not occur when adding 7% or more of hardener and accelerator to the mixture; be sure to add less than 7% to the mixture.
D Acrysirup-filler ratio
The Acrysirup-filler ratio depends on the hardening conditions, workability, finishing, and other factors for the particular application. Adding more than the standard amount causes unsatisfactory hardening. This depends on whether or not Acrysirup is deposited in spaces between filler; when there are empty spaces oxygen will impede hardening.
Ryoko Co., Ltd, Construction Chemicals Division, Acrysirup Department
14-1 Kaomi-cho, Nihonbashi, Chuo-ku, Tokyo, Japan 103-0016@phone 03-5651-0656