Tru-Pac C Concrete Additive

Price range: $10.00 through $38.00

One bag of Tru Pac C goes into one 60 lb bag of standard mix (concrete or sand mixes). Reach compressive strengths up to 8500 psi.

7.5 lb bag
70-140% Strength Gain
Increase workability
Enhance precast detail
Improved finish
Accelerate the set
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Product Description

Turn Standard Bag Mix into High-Performance Concrete

Tru-Pac C is a concrete additive that turns a plain bag of hardware store concrete into a high strength, creamy, fast-setting mix. Just drop one 7.5 lb bag into a standard 60 lb bag of concrete and you get a 67.5 lb batch that flows better, fills texture cleaner, and finishes far smoother than the bag mix on its own.

Dosage is simple. One 7.5 lb bag of Tru-Pac C per one 60 lb bag of bagged concrete gives you a 67.5 lb batch. It works with any standard bag mix, but a 4000 psi mix is the sweet spot, adding roughly 3500 psi of strength on top. Keep a few kits on the shelf, grab the concrete locally, and skip the freight on heavy specialty mixes.
Concrete countertop made with Tru-Pac C

Countertop Grade Results

From kitchen tops and vanities to furniture and fireplace surrounds, Tru-Pac C delivers a dense, smooth surface that grinds and polishes clean. It cures to a nice light gray and takes stain, dye, and sealer well, so you can build decorative pieces on a budget without giving up the finish quality your customers expect.

Troweling a concrete countertop surface

Easier Troweling, Cleaner Finish

The extra creaminess means you spend less time fighting the mix. Tru-Pac C stays open and workable longer than raw bag mix, so you can trowel out a tight, consistent surface with fewer bug holes and less patching on the back end. Less labor, better looking work.

Precast concrete cast in a mold using Tru-Pac C

Precast or Cast In Place

Whether you are casting in a mold or pouring in place, the self-consolidating flow works into corners, edges, and texture liners without heavy vibration. You get sharper detail, fewer voids, and a cleaner pull every time.

  • Demold in 24 hr, grind and polish in 48 hr
  • Cures to a light gray
  • Self-consolidating with fewer bug holes
  • Approximately 3.75 sq ft of coverage at 1 5/8 inches per kit
  • 7.5 lb per bag, sold in a pack of 4

See It In Action

Watch Tru-Pac C get mixed, poured, and finished.

Specifications

Weight 32 lbs
Dimensions 16 × 18 × 5 in
Size

,

Application

Countertops, Precast, Strength enhancing

Compatable With

Color Pacs, Standard bag concrete mix

Type

Color

1 review for Tru-Pac C Concrete Additive

5.0 out of 5 stars (based on 1 review)
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July 9, 2026

Awesome mix, flowable, less pin holes great strength – simply the best and most economical counter top option.

KR Concrete Designs

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