Tight-Gap, Low-Viscosity Epoxy Grouting
Precision Flow for Precision Foundations
Tight-Gap, Low-Viscosity Epoxy Grouting Solutions
When machinery bases, anchors, or rails leave only 2–10mm of clearance, you need a grout that’s not just strong—but also ultra-fluid.
ZDSpoxy formulates specialty low-viscosity epoxy grouts that can self-level and flow into tight gaps without segregation or shrinkage.
No pumping. No voids. Just clean fills and full contact.
- No middlemen
- Fast prototyping
- Private label available
Why Tight Gaps Are a Challenge
| Common Issue | Resulting Problem | ZDSpoxy Solution |
| Grout too thick to enter gaps | Air voids, uneven support | Ultra-low viscosity formula |
| Pumping required | Equipment cost, inconsistent flow | Self-leveling gravity pour |
| High exothermic reaction | Thermal stress in narrow zones | Controlled heat release over time |
| Shrinkage during cure | Debonding from steel or base | Zero-shrink epoxy chemistry |
Recommended ZDSpoxy Grouts
| Model | Viscosity | Gap Filling Range | Set Time | Notable Feature |
| ZDS3382AB | ~100 cps | 1mm – 20mm | 2.5 hrs | High fluidity, fast self-levelling |
| ZDS1410AB | ~300 cps | 3mm – 30mm | 4 hrs | Balance of flow & strength |
Ideal Applications
- Slide rail & baseplate leveling
- Machine bedplates with shim gaps
- Precision robotic equipment base grouting
- Tight column grout pockets
- Anchor bolt embedments with thin sleeves
- CNC machine leveling in retrofit installs
- Laboratory or cleanroom installations
Installation Tips for Tight-Gap Grouting
- Always pre-prime tight gaps with solvent-free epoxy primer (e.g., ZDS2870AB)
- Use formwork sealant to prevent edge leakage
- Pour from one side only; allow air to vent from opposite end
- Do not over-mix—air entrainment reduces flow
- Maintain material temperature >15°C before pouring
Case Study: CNC Machine Leveling (Singapore)
A CNC retrofit contractor had to re-level a high-precision machining bed with only 4mm clearance.
ZDSpoxy ZDS3382AB was chosen for its ultra-low viscosity.
Results:
- No pumping required, pour completed in under 20 mins
- Full contact underplate confirmed via ultrasonic scan
- Compressive strength at 3 days: 84 MPa
- Client eliminated previous void-induced vibration issues
FAQs
What’s the minimum gap ZDS grout can flow into?
ZDS3382AB can flow into gaps as narrow as 1–2mm.
Is vibration or air entrapment a concern?
Not with our gravity-pour formulations. Proper formwork and venting prevent air lock.
What if gap width varies across the base?
Our thixotropic nature allows self-adjustment—grout levels automatically across gradient variations.
Don’t let tight gaps compromise your equipment stability.
ZDSpoxy’s low-viscosity epoxy grouts ensure full surface contact, zero voids, and high structural integrity—no matter how small the gap.