ASP.NET MVC upload an image and save it to database

I am trying to upload an image to save it to SQL Server Express.

This is my view:

@model Nettbutikk.Models.ProductsModel

@{
}

@Html.Raw(ViewBag.msg)

@using (Html.BeginForm())
{
    @Html.AntiForgeryToken()

    <h1>Add New Product</h1>
    <form enctype="multipart/form-data">
        <p>
            <span>Product price<label>*</label></span>
            <br />
            @Html.EditorFor(ProductsModel => ProductsModel.ProductPrice, new { @htmlattributes = new { @class = "control-form" } })
        </p>

        <p>
            <span>Image<label>*</label></span>
            <br />
            @Html.TextBoxFor(ProductsModel => ProductsModel.ProductImage, new { type = "file" })
            
        </p>

        <p>
            <input type="submit" value="Add New Product" />
        </p>
    </form>
}

Here is my model class:

public class ProductsModel
{
    public Image ProductImage { get; set; }
    public int ProductPrice { get; set; }
    public int ProductId { get; set; }
}

And this is my controller method:

[HttpPost]
public IActionResult NewProduct(ProductsModel objProductModel)
{
    string conStr = "Data Source=.\\SQLEXPRESS; Initial Catalog=Nettbutikk; Integrated Security=True";

    SqlConnection con = new SqlConnection(conStr);
    con.Open();

    string query = "insert into products(price, picture) select " + objProductModel.ProductPrice + ", BulkColumn FROM Openrowset(Bulk '" + objProductModel.ProductImage + "', Single_Blob) as img";

    SqlCommand cmd = new SqlCommand(query, con);

    cmd.ExecuteNonQuery();
    con.Close();

    return View();
}

The problem is that objProductModel.ProductImage is null, which means the image is not sent to the controller. What am I doing wrong? Please help.