Sika SikaGrout 528 SF 50lb Bag

Sikagrout 528 SF is a non-shrink, non-metallic, cementitious grout with a unique two-stage shrinkage compensating mechanism. With a special blend of shrinkage-reducing and plasticizing/water-reducing agents, SikaGrout 528 SF compensates for shrinkage in both the plastic and hardened states.

Does not contain aluminum powder nor any components which generate hydrogen gas, carbon dioxide or oxygen.
Enhanced with un-densified silica fume for low permeability
Non-metallic, will not stain or rust

$40.93

SKU

18913

SikaGrout 528 SF – High Performance Nonshrink Cementitious Grout (50 lb Bag)

SikaGrout 528 SF is a high-performance, nonshrink, non-metallic cementitious grout formulated for superior durability in structural grouting and void filling applications. Enhanced with undensified silica fume, this grout offers exceptional permeability resistance and low bleed, even at high flow levels. It features a two-stage shrinkage compensating mechanism for maximum volume stability in both the plastic and hardened states. Free from aluminum powder or gas-generating additives, SikaGrout 528 SF is ideal for precision grouting where high flow and minimal thermal buildup are critical. Designed for confined applications only, it delivers consistent performance in industrial, commercial, and infrastructure settings.

Key Features:

Two-stage shrinkage compensation in plastic and hardened states
Enhanced with silica fume for reduced permeability and improved durability
Non-metallic and corrosion resistant—will not stain or rust
Excellent flowability with low bleed characteristics
Low heat generation for high volume pours
High early and ultimate compressive strength
Ideal for grouting tight clearances and confined spaces
Meets ASTM C109, C1090, and C940 standards

Applications:

Precision grouting of base plates and machinery
Void filling in concrete structures and precast elements
Grouting confined spaces in structural repairs
Industrial and commercial equipment foundations
High-performance repairs where low permeability is critical

Technical Specifications:

Property	Value
Compressive Strength (ASTM C109)	2,000 psi (1 day), 5,000 psi (3 days), 8,000 psi (28 days)
Shrinkage (ASTM C1090)	0.0% at 1 day, 0.0% to +0.2% at 28 days
Expansion (ASTM C940)	0.0 to +2.0% at 3 hours
Bleed Resistance	0.0% after 4 hours
Coverage	0.48 ft³ per 50 lb bag
Mixing Water	11.5–12.5 pints (5.4–5.9 L) per bag
Flowability (ASTM C939)	7–20 sec after mixing and after 30 minutes
Pot Life	60 minutes
Set Time (ASTM C266)	Initial: 3–12 hours
Shelf Life	12 months (unopened, dry storage)

Frequently Asked Questions:

Is SikaGrout 528 SF suitable for unconfined patching?
No. This product is designed for use in confined spaces only and is not recommended for patching or overlay mortar.

Can I mix less than a full bag?
Yes. For smaller batches, mix with a high-speed drill (2,500 rpm) and a jiffy paddle for a minimum of 6 minutes for best consistency.

What mixer is recommended?
A high-shear colloidal mixer like the ChemGrout CG-600 is recommended to achieve full performance characteristics.

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