Google ranks my main page, not my product pages

[MSDSoft]

My main page shows brief keyword rich descriptions of my products and links to these products.

The products pages contain detailed descriptions with good keywords density.

My problem is that google only shows my main page when I search for my keywords.

The product pages are more specific and more content rich than the main page. I consider that my product pages should rank better than the main page, since the content is more relevant.

What should I do in my web pages from SEO point of view so that google shows product pages instead of the main web page (or both) for a given keyword search?

Thanks for your comments.

[FranticFish]

The main page is probably considered stronger as it has more links (internal and external) pointing to it.

Keywords in links that point to a page are considered part of the page.

So you can

(a) try to strengthen the specific pages by having related pages (reviews / installation guide / comparison etc - put your thinking cap on) that link to them to provide them with more link love within the site.

(b) point more keyword-rich links from outside the site to those pages, and also

(c) point keyword-rich links with the specific page keywords (or part of them) to the main page for a 'trickle down' effect.

Warning: be aware that it's easy to kill your rankings for the keywords you're trying to target by crossing an 'over optimisation' threshold with internal or external anchor text. Although I see people who have hammered away with tightly focused anchor text rocking the SERPs, I've also seen first hand how this can kill your site.