TECHNICAL DATA SHEET
PRODUCT NAME: ROYALSIL HI-PURITY MEMO
CHEMICAL NAME: Gamma-Methacryloxypropyltrimethoxysilane (Min.99.5%)
ALTERNATE CHEMICAL NAME: 3-TRIMETHOXYSILYL)PROPYLMETHACRYLATE
CHEMICAL FAMILY: Organosilanes
CHEMICAL FORMULA: C10H20O5Si
MOLECULAR WEIGHT: 248.35
CAS NUMBER: 2530-85-0
EINECS NUMBER: 219-785-8
INTRODUCTION: ROYALSIL HI-PURITY MEMO is a methacryl-functional
silane; it is a clear, light and heat sensitive liquid with a faintly sweet odor.
ROYALSIL MEMO HI-PURITY is used as:
 Adhesion promoter at organic/inorganic interfaces,
 Surface modifier (impart water repellency, organophilic surface adjustment) or
 Cross linking of polymers.
It is used as a coupling agent to improve the physical and electrical properties of glassreinforced and mineral-filled thermosetting resins under exposure to heat and/or
moisture. It is typically employed as a blend additive in resin systems that cure via a
free radical mechanism (e.g. polyester, acrylic) and in filled or reinforced thermoplastic
polymers, including polyolefin’s and polyurethanes. It is also used to functionalize
resins via radical initiated processes - copolymerization or grafting - and to modify
surfaces.
APPLICATIONS: ROYALSIL HI-PURITY MEMO can:




Improve strength as glass fiber size composite in reinforced polyester composites.
Enhance initial and wet strength of reinforced polyester resin composites.
Enhance the wet electrical properties of many mineral-filled and reinforced composites.
Improve adhesion & durability in cross linked acrylic type resins used in adhesives & coatings.
PACKAGING: ROYALSIL MEMO HI-PURITY is supplied in 200Kg steel
drum. SHELF LIFE: In unopened original container ROYALSIL HI-PURITY
MEMO has a shelf life of one year or more in a dry and cool place.
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Solubility: ROYALSIL HI-PURITY MEMO is soluble in methanol, ethanol,
isopropanol, acetone, benzene, toluene, and xylene. After hydrolysis, it is soluble in
water with adequate stirring if the pH is adjusted to 4.0. Hydrolysis releases methanol.
It also shows copolymerization or grafting reactions when catalyzed by (organic)
initiator systems, e.g. peroxides or by radiation (e.g. UV).
Property
Value
Unit
Method
Appearance
Clear liquid
–
–
Active ingredient
3-Methacryloxypropyltrimethoxysilane
–
–
Minimum Purity
Min. 99.5
%
AN-SAA
1058
Hydrolysable chloride
Max. 2 PPM
mg/kg
AN-SAA
0411
Color index
max. 20
APHA
ISO 6271
Density (25/25 °C)
approx. 1.045
g/cm3
DIN 51757
Refractive index
approx. 1.430 [25 °C]
–
DIN 51423
Viscosity (25 °C)
approx. 2.0
cSt
DIN 53015
Boiling point
approx. 255 °C [760mmHg]
°C
DIN 51755
Flash point
approx. 108
°C
ISO 2719
Shelf life
12
months
–
PLEASE NOTE: All information in this Technical Data Sheet is based on our present
knowledge and experience. We reserve the right to make any changes according to
technological progress or further developments. Performance of the product described
herein should be verified by testing.
We specifically disclaim any other express or implied warranty of fitness for a
particular purpose or merchantability. We disclaim liability for any incidental or
consequential damages.
Please send all technical questions concerning quality and product safety to:
royalsilinc@gmail.com
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REV: DATE: 05-02-11