Product Data Sheet Safety Data Sheet Show all documents

Sika® Margel VPI-580

Vapour Phase Corrosion Inhibitor

Sika® Margel VPI-580 is a patented vapour phase corrosion inhibitor which is inserted inside concrete structural elements close to the reinforcing steel. The product has been specifically developed to ensure the corrosion inhibitors are released over a period of 12- 48 months. This results in a well bonded layer of corrosion inhibitor around the reinforcing steel resulting in a passivated protective layer that reduces exposure to chlorides, water and oxygen.

  • Proven Technology: 25-year track record.
  • Focused Protection: provides localised protection where actual and potential corrosion risks are high.
  • Economical: low-cost method protecting local areas of reinforcement that are chloride contaminated or contained in carbonated sound concrete, thereby reducing concrete breakout.
  • Versatile: effective in chloride-contaminated and carbonated concrete.
  • User Friendly: installation is quick and easy.
  • Low Maintenance: requires no external power source or system monitoring.
  • Long-lasting: 10 to 20 year service life reduces the need for future repairs.
  • Full System: can be used in conjunction with Sika® FerroGard®, Sika® Galvashield®, Sika® Ebonex® and Sikagard® coating technologies to offer a full Total Corrosion Management System.
Product Data Sheet Safety Data Sheet Show all documents

Usage

  • Reinforced concrete deteriorating from corrosion.
  • Where coatings have been applied and surface applied Corrosion Inhibitors cannot penetrate.
  • Car parks and bridge decks.
  • Protecting reinforcement at greater depths than surface applied Corrosion Inhibitors can penetrate.
  • Chloride contaminated concrete.
  • Carbonated concrete.
  • Historic structures.
 

Advantages

  • Proven Technology: 25-year track record.
  • Focused Protection: provides localised protection where actual and potential corrosion risks are high.
  • Economical: low-cost method protecting local areas of reinforcement that are chloride contaminated or contained in carbonated sound concrete, thereby reducing concrete breakout.
  • Versatile: effective in chloride-contaminated and carbonated concrete.
  • User Friendly: installation is quick and easy.
  • Low Maintenance: requires no external power source or system monitoring.
  • Long-lasting: 10 to 20 year service life reduces the need for future repairs.
  • Full System: can be used in conjunction with Sika® FerroGard®, Sika® Galvashield®, Sika® Ebonex® and Sikagard® coating technologies to offer a full Total Corrosion Management System.

Packaging

100 x 10ml cartridges per box

Cartridge dimensions = 17mm x 25mm

Product Details

Product Information

Shelf Life

24 months

Storage Conditions

Store properly in original unopened, sealed and undamaged packaging between +5°C to +40°C.

 
System information

System Structure

Sika® Margel VPI-580 is part of a Concrete Repair System conforming with the guidelines of BS EN 1504. 

Sika® MonoTop®-1010Bonding primer and reinforcement coating
SikaTop® Armatec®-110 EpoCem®Bonding primer and reinforcement coating
Sika® MonoTop®-615R3 hand and wet spray applied high build repair mortar
Sika® MonoTop®-4012R4 hand and wet spray applied high build repair mortar
Sika® MonoTop®-630 RapidR4 hand applied mortar
SikaCem®-133 Gunite SeriesR4 dry spray applied repair mortars
Sika® FerroGard®-903+Surface applied Corrosion Inhibitor
Sika® Galvashield®XP and CC Galvanic Anodes
Sika® Ebonex®Discrete ICCP Anodes

Application

Consumption

Consumption

1 cartridge per 0.5 m2 or 2 cartridges per m2 (minimum)
Application steps

APPLICATION

  • Drill 19-20 mm diameter holes at least 55 mm deep in a grid pattern spaced 1 metre apart horizontally, and 500 mm staggered vertically. Distances from edges of concrete elements to capsule positions should be < 250 mm.
  • On beams and columns, the spacing should be no greater than 500 mm apart and applied to one face if section dimensions are <500 mm; if > 500 mm, insert 2nd capsule into the hole at a greater depth, or install additional capsules on other faces.
  • The drilled hole must be thoroughly cleaned with a blow pump starting from the bottom of the hole and carried out at least 2 times.
  • Place a Sika® Margel VPI-580 cartridge into the pre-drilled hole and use a >15 mm diameter rod to push cartridge to bottom of hole.
  • After insertion of the Sika® Margel VPI-580 cartridge into pre-drilled hole, cut off a length of 25 mm diameter polyethylene backing rod (thickness between 5.0 - 10.0 mm). The diameter of the backing rod should be greater than diameter of hole, compressed and pushed into hole behind the cartridge ensuring contact between them both.
  • Infill remaining space with an R3 or R4 Class Concrete Repair Mortar to a minimum concrete cover depth of existing reinforcement. If cover is less than 5.0 mm use Sikadur® 31+. Ensure good compaction of mortar to help prevent vapour leakage from capsule and staining of any subsequent coatings.
 

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