Silicone Resins (siblings)
MQ Silicone Resin (Tackifier and PSA Resin)
MQ silicone resin is a network of M (mono-functional, R₃SiO₁/₂) and Q (quad-functional, SiO₄/₂) units. The M:Q ratio (typically 0.6-1.2) controls the resin's tack-providing properties for silicone pressure-sensitive adhesive (PSA), or its viscosity-building properties as a silicone-rubber tackifier and reinforcer.
Specifications
| M:Q Ratio | 0.6-1.2 (tackifier); ≥1.0 (PSA) |
| Softening Point | 70-90 °C |
| Form | Solid powder or 50-70% xylene solution |
| Storage Modulus (E') | 10⁵-10⁶ Pa @ 25 °C |
Applications
- Silicone pressure-sensitive adhesive (PSA) for medical tape
- Silicone-rubber tackifier
- Cosmetic stick rheology (deodorant, antiperspirant)
- Lipstick and lip-balm structure-builder
- Hot-melt silicone adhesive base
Key Features
- Combines high cohesion with high tack — unique among silicone resins
- Compatible with PDMS gum for PSA formulation
- FDA 21 CFR 175.300 compliant grades available
- Tunable softening point via M:Q ratio
Send Inquiry
Type
MQ Network Resin
M:Q Ratio
0.6-1.2
Form
Powder or solution
Sample
Within 5 business days
Availability
In Stock