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in form retarder

Altus Series In-Form Retarders

Surface Retarder for Precast Applications

Solvent-based surface retarders engineered to create architecturally refined sand finishes and exposed aggregate concrete. Altus prevents hardening of cementitious paste to a predetermined depth, ranging from a light sand finish to full aggregate exposure, designed for use in horizontal or vertical formwork on cast-in-place or precast applications.

Altus Series VOC is a reformulated low emitting version of Altus Series developed for the VOC restricted areas.

Technical Information Sheet

Safety Data Sheet

VOC Safety Data Sheet

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Altus is available in 10 different colors to designate the depth of etch or aggregate exposure. When applied to formwork they provide an abrasion-resistant surface so that concrete, while being placed, doesn’t remove retarder from the forms. The retarder coating on the form reacts chemically with the concrete, retarding the hydration/strength gain of the surface paste of the concrete in contact with the retarder. After the concrete has set and the form pulled, the surface of the concrete that was in contact with the form may be flushed with high pressure water. This rinses away the paste revealing the desired depth, exposing aggregate or simply imparting a sandblast or acid etch effect.

Uses:

  • Residential or commercial
  • In-form retardant
  • Vertical applications
  • Precast applications
Grade Selection & Color Exposure / Finish Type VOC Aggregate Size
(03) Xtra-Lite White Micro Finish VOC Only —
(05) Sand Teal Blue Micro Finish VOC Only —
(10) Sand Blue Green Micro Finish VOC Only —
(15) Light Green Micro Finish — 1/8″ – 1/4″
(25) Medium Orange Light Sandblast Finish — 1/4″ – 3/8″
(50) Deep Blue Med. Sandblast Finish — 3/8″ – 1/2″
(75) Small Agg. Yellow Deep Sandblast Finish — 3/8″ Graded
(125) Med Agg. Lt. Green Exposed Finish — 1/2″
(175) Large Agg. Pink Exposed Finish — 5/8″
(250) XL Agg. Gray Exposed Finish Non VOC Only 3/4″ +

Features:

  • Easy application
  • Alternative to acid washing or sandblasting
  • Roll or spray on forms
  • Color coded
  • 10 levels of aggregate exposure
  • Heat and abrasion resistant
  • Consistent results
  • Works on steel, concrete, or plywood forms
  • Available in (2) formulas: Altus and Altus VOC for lightly exposed finishes and for general use in areas with VOC restrictions
  • Compatible with the ACC family of products, including Form Seal and CitriSolv
  • Coverage: Approximately 300–350 sq. ft. per gallon

Note: A test panel simulating actual job or plant conditions is recommended to confirm proper grade selection before full production.

Introducing ACC Altus: A Better Way to Do Decorative Concrete Walls

Exposed Aggregate Walls Made EASY with Altus In-Form Retarders

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Brickform was founded in 1971 during the early days of modern decorative concrete. With innovations such as urethane stamps and computer aided design, Brickform has long been at the forefront of the industry.

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