Hard Rock Concrete Supplies carries a full range of supplies for the concrete industry. Our range of products includes; Sealers, Cure & Seals, Rebar (Steel and GFRC), Insulation, Support Brackets, Weeping Tile, Patching and Repair Materials; as well as hand and power tools.
Our team prides itself on our customer service, product knowledge, and wide range of quality products and would love the opportunity to talk with you about all of your concrete needs. 

Release Agent # 10-450 PB

SKU: 710452
Regular price $1,350.00

RELEASE AGENT #10 reacts chemically with the alkalies in concrete to form a soapy fi lm which allows trapped air and excess water to escape during vibration, minimizing surface
voids and providing a smooth, uniform concrete fi nish. When used on steel, Release Agent #10 reacts with iron present on the form surface to create a fi lm that minimizes rust formation between pours.


  • Use on dense, non-absorptive form surfaces such as steel, plastic, fi berglass and HDO, PSF and CBF plywood forms.
  • Use on semi-absorptive form surfaces such as MDO plywood.
  • Ideal for precast and commercial forming operations where forms see daily use or are subject to aggressive stripping schedules and where architectural concrete surface appearance is a primary objective.


  • Greatly minimizes concrete surface voids (bugholes).
  • Provides a crisp, positive release.
  • Produces uniformly white architectural surfaces.
  • Fast drying.
  • Minimizes form cleaning and maintenance costs -- forms become self-cleaning with continued use.
  • Low viscosity, chemically active formulation allows application at very high coverage rates, reducing costs.
  • Non-staining.
  • Hydrotreated napthenic diluents reduce skin and odor irritations common with traditional solvent or petroleum based release agents.
  • Does not impair the natural bonding characteristics of subsequently applied paint or other concrete surface coatings.
  • Contains a flash rust inhibitor that minimizes rust formation between pours.
  • Less sensitive to application rate variations than other chemically active release agents.
  • Spray easily at temperatures down to -30° F (-34° C).
  • Available in a USEPA inherently biodegradable version - Release Agent #10 - 450 PB
  • Available in versions that meet all federal and state VOC requirements.
  • Release Agent #10 -100 meets South Coast Air Quality Management District Rule #1113 (SCAQMD #1113).


  • Do not use on aluminum or absorbent wood form surfaces. Nox-Crete’s Alumi-Nox release agents are recommended for aluminum form surfaces.
  • Do not use on any type of foam or rubber form surface. Nox-Crete Form Coating E, PCE and Bio-Nox are generally suitable for use on these form surfaces. Conduct a test application to verify compatibility prior to use.
  • Applications to nonabsorbent plastic or fi berglass forms may be subject to removal by heavy rain. In these situations, the use of Nox-Crete PCE is recommended.
  • Verify that product is within the “USE BY” date stated on product packaging. Do not use expired product. The use of expired product may result in poor product performance or failure.


  • Request current product literature, labels and material safety data sheets from manufacturer and read thoroughly before product use.
  • Site environmental conditions, substrate conditions and concrete mix design have a major effect on product selection, application methods, procedures and rates, appearance and performance. Product literature provides general information applicable to some conditions. However, an adequate production test application by the purchaser or installer in advance of field scale use is mandatory (irrespective of any other verbal or written representations) to verify that product and quantities purchased can be satisfactorily applied and will achieve desired appearance and performance under intended use conditions.
  • Form surfaces should be reasonably dry and clean prior to application.
  • For architectural or exposed concrete surfaces, remove all concrete build-up, rust, mill scale and existing form oil residue before application.
  • Spray application is recommended using Nox-Crete’s Perfect Form & Concrete Sprayer or Excel 130 Sprayer. Both are equipped with the proper nozzle size to ensure uniform product distribution.
  • Typical application range on steel, plastic and resin-coated wood forms is 2,500-3,000 sf/gal. (62-75 sm/L).
  • Typically application range on semi-absorptive form surfaces such as MDO is 1,000-1,500 sf/gal. (25-37 sm/L).
  • Do not over apply. Excess material, runs and puddles can adversely affect performance and should be picked up promptly with rags.
  • Prevent material overspray from contacting reinforcing steel and/or prestressed cables
  • Overspray and application equipment can be cleaned with mineral spirits.



 Release Agent #10 - 100  6.8 (.81 kg/L)  > 200°F (93°C) .05 - 1.0 100 g/L
Release Agent #10 - 250  6.8 (.81 kg/L) > 140°F (60°C) .05 - 1.0 250 g/L
Release Agent #10 - 450 6.9 (.83 kg/L) > 140°F (60°C) .05 - 1.0  450 g/L
Release Agent #10 - 450 B  7.2 (.87 kg/L)  > 200°F (93°C)  .05 - 1.0  450 g/L

Packaged in 5 gal (19 L) pails
55 gal (208 L) drums
275 gal (1,041 L) totes.

Shelf life is two years. Use before the “USE BY” date stated on product packaging.

Store in a dry location within a temperature range between 40° F (4° C) and 100° F (38° C).


Release Agent # 10-450 TDS

Release Agent # 10-450 SDS

Precast Market Brochure