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Sika Sikadur 21 Lo-Mod LV 4 Gallon
Sikadur-21 Lo-Mod LV is a two-component low-modulus low-viscosity epoxy binder in a 4 gallon unit for mortar patches and overlays. It mixes 1:1 and stays moisture-tolerant before and after cure.
- Low-viscosity epoxy binder for mortar patches and overlays
- Moisture-tolerant before and after cure
- USDA-certifiable for incidental food contact
$529.82
Sikadur-21 Lo-Mod LV
Sikadur-21 Lo-Mod LV is a two-component 100% solids moisture-tolerant low-modulus low-viscosity epoxy resin binder that conforms to ASTM C-881 Type II, Grade 1, Class B and C and AASHTO M-235. This clear amber 4 gallon unit (part 106594) mixes 1:1 by volume, holds a pot life of approximately 25 minutes, and reaches approximately 9,200 psi neat compressive strength at 28 days at 73 F. It binds epoxy mortar patches and overlays at approximately 1,000 cps viscosity and is USDA-certifiable for incidental food contact.
Key Features
- Two-component 100% solids moisture-tolerant low-modulus epoxy binder
- ASTM C-881 Type II, Grade 1, Class B and C; AASHTO M-235
- Mix ratio A:B = 1:1 by volume; viscosity approximately 1,000 cps
- Pot life approximately 25 minutes for a 200 gram mass
- Neat compressive approximately 9,200 psi at 28 days at 73 F
- Traffic ready in approximately 4 to 5 hours under sheet conditions
Applications
- Binder for epoxy mortar patching and overlays
- Prime coat ahead of epoxy mortar placement
- Interior and exterior repairs needing a low-viscosity binder
- Jobs needing USDA-certifiable incidental food-contact chemistry
Technical Specifications
| Property | Value |
|---|---|
| Manufacturer | Sika |
| Product | Sikadur-21 Lo-Mod LV |
| Part no. | 106594 |
| Unit | 4 gallon unit |
| Color | Clear amber |
| Chemistry | Two-component 100% solids low-modulus epoxy binder |
| Mix ratio | 1:1 by volume |
| Viscosity | Approximately 1,000 cps |
| Pot life | Approximately 25 minutes |
| Neat compressive 28 day at 73 F | Approximately 9,200 psi |
| Traffic time | Approximately 4 to 5 hours |
Product documents: Sikadur-21 Lo-Mod LV Product Data Sheet (PDF)
Frequently Asked Questions
What jobs suit Sikadur-21 Lo-Mod LV?
Epoxy mortar patching and overlays where a low-viscosity moisture-tolerant binder is needed.
What mix ratio and pot life apply for Sikadur-21 Lo-Mod LV?
Mix A:B = 1:1 by volume. Pot life is approximately 25 minutes for a 200 gram mass.
What compressive strength does neat Sikadur-21 Lo-Mod LV reach at 73 F?
Approximately 1,900 psi at 1 day and 9,200 psi at 28 days under ASTM C-579.
What mortar yield does one gallon of mixed Sikadur-21 Lo-Mod LV give?
One gallon mixed with 6 parts by loose volume of oven-dried sand yields approximately 924 cu in of epoxy mortar.
What ASTM class does Sikadur-21 Lo-Mod LV meet?
It conforms to ASTM C-881 Type II, Grade 1, Class B and C and AASHTO M-235.
What size is Sikadur-21 Lo-Mod LV?
The unit is 4 gallons, part 106594.
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